recursal/Fanatic-Fandom huggingface dataset:
Killer T Cell (Squad Leader)

**Killer T Cell** (キラーT細胞, *Kirā Tī Saibō*?) is a minor character in *Cells at Work!* Killer T Cell is a white blood cell, specifically a **Cytotoxic** **T Lymphocyte** (Cytotoxic T Cell) that works under the Killer T Division. He is tasked to kill any foreign entities and cells that are damaged or infected. He becomes a Memory T Cell when fighting the same antigen (Cancer Cell).

## Appearance

Killer T Cell is a tall, masculine cell with tan skin, blond hair, and gold eyes. He wears the killer T cell non-bulletproof vest uniform. He is later shown with a Memory T Cell hat.

## Personality

Killer T Cell is loud, obnoxious, and quick-tempered, resulting in rivalries with many cells and is prone to being violent. He also despises it when a non-white blood cell forms a friendship or relationship with one of his kind and doesn't tolerate any failures from anyone under him.

## History

As an immature thymocyte he went through training at Thymus school, where apprentice cells like himself learn to become Mature Thymocytes. Although in the beginning he was scrawny and weak, he never gave up. There he also met Helper T Cell. They end up forming a grudging friendship.

## Abilities

Killer T Cells are strong cells who play an important role; they kill cancers cells, infected cells as such.

* **Overall Abilities**: Like all killer T cells, he is tough and masculine. Possessing heightened strength, he can easily terminate threats with one strike and break walls of tissue.

* **Martial Arts Proficiency**: He can wield other weapons like a knife, but free hand is his preferred choice. His attacks are packed with a lot of strength, thus one punch can kill threats like influenza infected cells.
* **T Cell Perforin Canon Punch**: A legendary killer T move that only can be unleashed when one's desire to protect the body is at its limits. He was able to utilize the special technique once during the final Cancer Cell arc. It is unknown whether he will be able to use the technique again in the future.
* **Memory T Cell**: Killer T Cell can take the role of a Memory T Cell when fighting an enemy he has fought before, signifying that he is familiar with most of the enemy’s moves and is using that knowledge in combat.

## Trivia

* He secretly named his fist attacks during his youth, being called "Immunity Super Dissolving Fist!", "Killer T Punch, 42 Strikes!", and "In Vivo Ultimate Secret Technique Antigen Super Pummeling Smash-Into-Pieces Fist!".
	+ Cancer cell called his attack by a pun Puff(パフ)-Pudding(プリン)-Pants(パンツ).
* Natural killer cells and killer T cells resemble brothers-in-arm because of their complementary roles for each other. This explains the close yet competitive relationship between NK Cell and Killer T Cell in the series.

## References

1. ↑ 1.0 1.1 Cells at Work! Manga, Chapter 25
Pneumonia Coccus

The ***Pneumonia Coccus*** (or ***Pneumococcus*/ *Streptococcus Pheumoniae*** (肺炎球菌 (Haienkyūkin, *肺炎球菌*?)) are bacteria encountered in *Cells at Work!*.

## Appearance

All pneumococci shares the same appearance. They are tall, skeletal creatures with purple amour-like shell. They have limbs similar to grasshopper's and hands like a bird's foot. They also have many long thin tentacles with curved blades hanging from their bodies and long claws.

## Personality

Only one Pneumonia Coccus has been fleshed enough to give him some personality, as his fellow comrades were quickly cut down by the Neutrophil Division. This Pneumonia Coccus is shown to be as easily lost as AE3803, and can easily get enraged. He also likes an honest battle, as he yells at U-1146 for "fighting dishonorably" despite having a combat advantage over the Neutrophil.

## Background

He is a bacteria that causes illnesses such as pneumonia and pneumococcal bacteremia.

### History

A group of Pneumococci appear in Pneumococcus where they attack the body in an attempt to invade the lungs. The Neutrophil Division soon arrive and kill them with ruthless efficiency.

As AE3803 tries to find directions to the lungs, she opens the door to a map room and finds a sole Pneumonia Coccus inside, who is also looking at the map. The two stare at each other for several seconds, before AE3803 closes the door. Coccus soon smashes the wall down, yelling at AE3803 for pretending as if nothing happened. U-1146 arrives, as he had been tracking him down, but Coccus launches a bacterial net and smokescreen to seemingly escape.

When AE3803 arrives at the lungs, he bursts out from the box she was transporting and thanks her for giving him a free ride to the lungs. U-1146 soon engages him in battle, discovering his plan as he left AE3803. U-1146 is unable to kill him because of his shell, so he lures him into the respiratory track, where pneumococcus is expelled from the body via sneezing.

Several Pneumococcus appear with Staphylococcus Aureus, (In Scrape Wound) where she states she heard rumors of Coccus not filing the joint when he invaded (and a Pneumococcus asked another if the one who invaded was his brother). Coccus is revealed to be the younger brother of another Pneumococcus. All the Pneumococcus are killed when the Platelet Division seal the abrasion with their fibrin netting.

## Abilities

These bacterium are swift hunters that invade human bodies to hunt for nutrients.

**Overall Abilities**: Pneumococcus can be easily destroyed by white blood cells if they are unaware, however, they can also counter them with their cell capsules. Pneumococcus relies on their agility and allies, they can multiply quickly and invade the whole body within 24 hours. They can break walls of tissues and kill defenseless cells like red blood cells with ease.

**Cell Capsule**: Pneumococcus possesses a cell capsule that is extremely virulent and can be used to protect themselves.

**Tentacles and Claws**: They use their tentacles and claws as their primary weapon to slaughter their prey.

## Trivia

* The full name of Pneumococcus is *Streptococcus pneumoniae*.
MI3477

* Manga
  GENDER
  SPECIES

**MI3477** is a minor character in *Cells at Work!*.

## Appearance

MI3477 has tan skin, a shaved head leaving a gray outline, and brown eyes. He dresses in a standard red blood cell uniform.

## Personality

MI3477 is shown to have extensive knowledge on hidrosis and epidermis, as he details it to AE3803 and AA5100.

## Background

He is a red blood cell whose main task is to deliver oxygen, carbon dioxide and nutrients all over the body like the rest of his kind.

## Abilities

As a red blood cell, his job is to transport oxygen and carbon dioxide throughout the body.

* **Lowering the body temperature**: Red blood cells can help promote perspiration which will help regulate body temperature by decreasing the body temperature. This does not always work as they may be outside factors which may prevent a successful perspiration.
Aciclovir

**Aciclovir** (**ACV**), also known as **acyclovir**, is an antiviral medication. It is primarily used for the treatment of herpes simplex virus infections, chickenpox, and shingles. Other uses include prevention of cytomegalovirus infections following transplant and severe complications of Epstein-Barr virus infection. It can be taken by mouth, applied as a cream, or injected.
Dengue Virus

**Dengue Virus**

  JAPANESE NAME
  ROMANJI
  GENDER
  SPECIES

(DENV) is a virus that causes dengue fever.

## Appearance

Dengue Virus appears as a harmless red mask with a pulling allure. In the anime it seemed like it only infected Langerhans Cells.

## Background

Dengue Virus appears as a mask that fell from a wound inflicted by a mosquito. Langerhans Cell picked it up and stated that it seemed very attracting and alluring. Once he put the mask on, the mask girpped on tightly to his face.

## Trivia

* A virion of dengue is depicted as a mask of a Tengu, a spirit or *yōkai* from Japanese folklore. This is a visual pun on the phonetic similarity between the words "Tengu" and "dengue" (デング, *dengu*?) in Japanese.
	+ Cells infected by the virus are even granted the gust-blowing abilities of a Tengu's aralia leaf.
* The Dengue Virus is similar to the Stone Mask from the JoJo's Bizarre Adventure series. The masks have similar functions and behaviors.
Memory Cell (Black)

ROMANJI
  GENDER
  SPECIES

**Memory B Cell** or just commonly known as **Memory Cell** (記憶細胞, *Kioku Saibō*?) is a minor character in Cells at Work! BLACK.

## Appearance

He is an average-looking cell with short light hair. He wears a polo, slacks and vest, and a tie.

## Background

He is a white blood cell, specifically a **Memory Cell** (B Lymphocyte). Unlike other white blood cells he does not engage in any combat; he records all the information of the past antigens that invaded so the immune system will be prepared when the same threats invade again.

## Abilities

* **Overall Abilities**: He remembers antibodies so the immune system knows how to respond to an invader when it strikes again. He usually works together with B Cell for his antigens.
* **Allergic Reaction**: He also refers to data passed down through genetics, which could lead to an overreaction toward harmless invaders, thus an allergy.
* **Acquired Immunity**: The main principal vaccines are based on. After encountering a type of virus in the past, the body becomes permanently immune to the virus because the Memory Cell knows how to deal with it.
Episode 3 (CaW CB)

## Excitement, Swelling, and Emptiness

"**Excitement, Swelling, and Emptiness**" (興奮、膨張、虚無, *Kōfun, Bōchō, Kyomu*?) is the 3rd episode of the **Cells at Work! CODE BLACK!** anime adaption.

## Plot

The cells are complaining of their lack of oxygen, and red blood cells complaining about how exhausting work is.

An announcement gets broadcasted throughout. The body is about to enter a state of arousal.
The red blood cells are given an important task, fill the erectile tissue with blood to trigger an erection.

AA2153 is excited about the opportunity to contribute to the birth of a new life. He and a few coworkers go to the male reproductive organ, Corpora-Cavernosa, to begin their new task. But while in line, AA2153 gets bullied by veteran Erythrocytes who cut in front of him. Luckily U-1196 comes along and chases the bullies away. They, along with U-1212 and U-8787 two go to the testes, a nursery for Spermatogonia - male reproductive cells that mature into sperm - where Sertoli cells take care of them.

However, things take a turn when accumulated stress impairs the erection. Luckily, the body consumes an intake of Sildenafil, also known as Viagra. Thanks to the boost and the efforts of the red blood cells, the body achieves ejaculation.

But intercourse allows an infection to come inside the body. Depleted and at a numerical disadvantage, the white blood cells must fight against Neisseria Gonorrhoeae with everything they have.

## Characters

### New characters

* Sertoli cell
* Sperm
* Neisseria Gonorrhoeae
* Sildenafil
* Erythrocytes

### Returning characters

* AA2153
* AC1677
* U-1196
* U-1212
* U-8787
Influenza (Manga)

## Influenza

**Influenza** is the 3rd chapter (インフルエンザ, *Infuruenza*)

## Summary

### Plot

The influenza begin their rampage. Macrophage, the T and Neutrophil division engage the enemies. The T Division get Naive to fight, but he becomes terrified and drops his weapon, forcing Killer to save him. The division then starts yelling at him again, causing Naive to run off. Elsewhere, normal cells run away which it prompts Red Blood Cell and Senior Red Blood Cell to ask a cell what's going on, to which he informs them of an Influenza epidemic.

Then Naive runs off to the Dendritic tree where Dendritic Cell asks him what's the problem. Then Naive tells him that he's too scared to fight and that his senpais keep yelling him for not contributing to the battle. Then Dendritic Cell grabs several photo albums, telling Naive to look at the photos. Then Naive opens the albums and realizes that the T cells in the album are his senpais when they were younger. Then Dendritic explains that his senpais were also Naive T cells and that they evolved into the Killer T Cells that they are today, stating that they see a part of themselves in Naive.

The Influenza virus continues to multiply and infect more normal cells to bolster its ranks. Then the group's overwhelmed by their sheer numbers. As an Influenza tries to charge at the group, a fist breaks through the wall and sends it flying. Then Effector T cell introduces himself as the former Naive and reveals that he has also proliferated, allowing them to battle the Influenza. B Cell also arrives with his antibodies.

After a week of battling, the Influenza's all, but eradicated and the group celebrates their victory. Then a single Influenza appears to confront the group; as Effector charges at it, the Influenza quickly slaps him aside and then he reverts back to Naive. Then B Cell tries to spray his antibodies on it to no avail, just as the group realizes that it's a Type-A Influenza. B Cell runs off to make Type-A antibodies as the Influenza multiplies again, forcing the White Blood Cells into another fight.
I will not forget its coming (Manga)

## Summary

After the daily chore, naive T cell taking a long nap. He had an uneasy sleep as he is suffering sleep paralysis. When he opened his eyes, he saw a black-long haired monster crawling at his apartment ceiling. Panicked, he ran away from his apartment to ask 2145 for an advice. 2145 told naive T cell to meet Memory Cell.

After consulting his problem with Memory Cell, naive T cell is taking Memory Cell to have a look at his apartment. Memory Cell told him that he do not know anything about this phenomenon. Memory Cell leaves him alone after taking a lunch.

When naive T cell is taking a bath, he met the black monster again. Luckily, 2145 and his teammates arrived just in time to kill the monster.

The monster turns out to be a Escherichia Coli, that came into the bloodstream because of a hemorrhoid.
Episode 13 (CaW CB)

## Cardiac Arrest, Revival, and a Change

"**Cardiac Arrest, Revival, and a Change**" (心筋梗塞、蘇生、変化, *Shinkinkōsoku, Sosei, Henka*?) is the 13th episode of the **Cells at Work! CODE BLACK!** anime adaption.

## Plot

The body receives chest compressions and the heart fibrillates. The cells chant for the heart to work again except for a veteran red blood cell who is tired of working. The heart is shocked by a defibrillator and works again. The coronary artery gets a stent inserted to clear the blockage, allowing the blood to circulate again. The red blood cells deliver oxygen to all the body's cells, saving them. Afterwards, AA2153 reminisces about his life's journey and meets U-1196 as they note that the body has cleaned up its act. The body has stopped smoking, drinking alcohol, and eating bad food, so the body is cleaner and less stressed. U-1196 says AA2153 has matured and AA2153 says he always admired U-1196, making them blush.

After the credits, the body is pierced by a syringe that sucks blood cells into it, including AA2153 and U-1196. They wake up and are horrified to find themselves in a new body that is even dirtier than the last one previously was.

## Characters

### Returning Characters

* AA2153
* NC8429
* U-1196
* U-8787
* U-1212
* Hepatocyte
* Platelet (BLACK)
* Hair Matrix Cell
* Pigment Cell
* Foveolar cell
* Gastric Chief Cell
* Glomerulus
* Killer T Cell (Black)
* Macrophage
Erythroblasts and Myelocytes (Manga)

## Erythroblasts and Myelocytes

**Erythroblasts and Myelocytes** (*Sekigakyū to Kotsuzuikyū*, 赤芽球と骨髄球) is the 7th chapter in the Cells at Work! (Manga).

## Summary

AE3803 gets lost again and finds herself in her birthplace, the Red Bone marrow. She reminisces on being a young Erythroblast being trained by a Macrophage on how to be a Red Blood Cell. One day, while practicing to evacuate from bacteria, she got lost and was separated from the others. She got captured by a Pseudomonas Aeruginosa who intended to torture and kill her before moving on to other blood cells. A young Myelocyte came to her rescue, and although no match for the bacterium, bought enough time for Macrophage and a Neutrophil to arrive and kill the bacterium. She thanked the Myelocyte for helping her and they went their separate ways hoping to someday see each other again. In the present, she runs into U-1146. As he offers to guide her to her destination, she suspects the Myelocyte who saved her grew up to be U-1146.

## Characters

* AE3803
* Macrophage
* Pseudomonas Aeruginosa
* U-1146
Episode 14

"**Bump**" (たんこぶ, *Tankobu*?) is the fourteenth episode of the *Cells at Work!* anime. It's based on the twenty-sixth chapter of the manga, which has the same title.

## Synopsis

While exterminating germs, White Blood Cell meets a Platelet who wears her cap backwards and is secretly training to become stronger.

## Plot

While doing his work of eliminating germs and bacteria from the body, U-1146 runs into Backwards cap Platelet. The young Platelet secretly training wants to become stronger.

But her training gets disrupted when a loud rumbling noise suddenly echoes inside the body, followed by violent shaking, causing the breaking of capillaries. The Platelets must stop the internal hemorrhage. But the young fragment cells don't have enough strength to stop it.

Megakaryocyte at first berates them for being weak but at the same time motivates them by offering medals. The platelets form human chains to reach across the injury and seal it with a clot.

## Characters

### New characters

* Backwards cap Platelet
* Megakaryocyte
Episode 7 (CaW CB)

## Caffeine, Temptation, and Jealousy

"**Caffeine, Temptation, and Jealousy**" (カフェイン、誘惑、嫉妬, *Kafein, Yūwaku, Shitto*?) is the 7th episode of the **Cells at Work! CODE BLACK!** anime adaption.

## Plot

AC1677 like the other red blood cells, delivers oxygen to the entire body. However, there's something wrong. It turns out the oxygen delivered transforms into reactive oxygen species (ROS), causing the ordinary cell to age. Thus putting the blame on the rookie red blood cell. But in actuality, the oxygen turned to ROS because of the body's internal environment.

Even though it was an accident, AC1677 is overcome by guilt. Despite the incident, the cells hold an awards ceremony to honor the best among them. AA2153 wins the Rookie of the Year award. Even though AC1677 and AA2153 started on the job at the same time, the former is pained by a sense of inferiority towards his colleague, causing AC1677 to become jealous.

Two of the senior red blood cells approach AC1677 and say that they understand how he must feel. The senior red blood cells offer AC1677 to help him get a boost. The rookie walks away and continues with his task. AA2153 joins AC1677 on delivery, but the former is a bit disgruntled. Nevertheless, the two rookies must continue with their duties. They arrive at the hair follicles and find that the hair has not regrown and deliver oxygen to a dying Sebaceous Gland Cell. The ROS from AC1677's delivery causes terrible body odor. Disappointed with his lack of success, AC1677 grows extremely resentful towards AA2153.

AC1677 once again runs into the senior red blood cells. The veterans drag the rookie to hang out with them in the small intestine and get AC1677 hooked on caffeine and arginine. Thus, boosting AC1677 energy and allowing him to match AA2153's pace.

AC1677 runs into AA2153, who tells him about the drugs. But AA2153 rejects it, pointing out the dangers of a temporary power boost. Suddenly, there's an alert. The body suffers a nosebleed. As the red blood cells try to resist being sucked outside, AC1677 crashes and runs out of strength.

The young red blood cell admits to AA2153 that he was right and resigns himself to die. But at the last second, AA2153 saves him and says having him for a friend was what motivated him to do his best.

Later, the senior red blood cells invite AC1677 to partake once again in the caffeine boost. But AC1677 rejects them, having beaten the addiction.

## Characters

### Returning Characters

* AC1677
* AA2153
* Hair Matrix Cells
* Platelet Division
AA5100

**AA5100, Senior Red Blood Cell** (先輩赤血球, *Senpai Sekkekkyū*?) is a minor character in *Cells at Work!*

## Appearance

AA5100 has long brown hair, eyes, fair skin, and an oval shaped head. She wears a standard red blood cell uniform.

## Personality

AA5100 is kind as well as informative and supportive toward the juniors she's responsible for.

### Background

She is an older red blood cell with decent working experience in the blood vessels. She sometimes guides and teaches AE3803 how to do her job when she is confused or lost.

## History

AA5100 is seen after the hemorrhage event in Hemorrhagic Shock (Part II), running towards AE3803 with a flustered look after the latter mistakenly spoke to ME0808 thinking she was NT4201.

## Abilities

As a red blood cell, she is a worker that is unable to protect herself. Therefore her job is to only transport goods.

* **Overall Abilities**: Despite having no abilities to defend herself, she is capable of transporting goods into all corners of the body with high acceleration. She's even adept at getting through incredibly tight spaces, albeit with considerable difficulty.
* **Reversible Jacket**: All red blood cells wear a reversible jacket that helps them indicate their speed when moving around in either veins or arteries. The jacket has extendable sleeves and zips up for colder weather.
Cells at Work! Lady

**Cells at Work! Lady** (*Hataraku Saibō Lady*) is a spinoff of Cells at Work! illustrated by Akari Otokawa and written by Shigemitsu Harada ( from Cells at Work! Code Black). This manga is aimed toward adult women. It is available in print and ebook formats, with the official English translation only available digitally from Kodansha USA Publishing.

## Chapters

### Volume 1

* Chapter 1: Cold-Sensitivity Warning
* Chapter 2: Sweet Love Leads to a Diet
* Chapter 3: The Dismal Days of Mensuration
* Chapter 4: Skin Trouble from Anemia?!
* Chapter 5: Cervical Cancer Attack

### Volume 2

* Chapter 6: True Beauty Starts at the Cell
* Chapter 7: Stomach Scramble
* Chapter 8: Muscles for Our Lady!
* Chapter 9: Exchange of Love: An Unknown Enemy
* Chapter 10: New Life
* Bonus Chapter: A Smitten Maiden and Her Clear Eyes

### Volume 3

* Chapter 11: That Which Dons Itself in Life
* Chapter 12: Fetal Movement
* Chapter 13: Labor Prelude
* Chapter 14: The Blessings of a Newborn's Cry
* Chapter 15: My Lady

## References

1. ↑ https://www.animenewsnetwork.com/news/2019-12-21/cells-at-work-manga-gets-new-hataraku-saibo-lady-spinoff-series/.154639

## External links

* Official Twitter page
* Artist's Twitter page
Memory Cell (Friend)

ROMANJI
  GENDER
  SPECIES

**Memory B Cell** or just commonly known as **Memory Cell** (記憶細胞, *Kioku Saibō*?) is a minor character in Cells at Work! Friend.

## Appearance

Memory Cell has light hair parted in the middle, thick dark eyebrows, a mustache, and light eyes. He wears a semi-dark vest over a dark long sleeved shirt along with a neckerchief, and semi-dark pants.

## Background

He is a white blood cell, specifically a **Memory Cell** (B Lymphocyte). Unlike other white blood cells he does not engage in any combat; he records all the information of the past antigens that invaded so the immune system will be prepared when the same threats invade again.
Episode 10

## Staphylococcus aureus

"**Staphylococcus aureus**" (黄色ブドウ球菌, *Ōshoku Budō Kyūkin*?) is the tenth episode of the *Cells at Work!* anime. It's based on the fifteenth chapter of the manga, which has the same title.

## Synopsis

After a Monocyte rescues AE3803 from a germ, she heads to the nasal cavity for a warm bath -- just in time for a Staphylococcus Aureus attack.

## Plot

AE3803 makes a delivery to a Normal Cell in a tight alley way and when she completes this, runs into some Platelets. Soon after, AE3803 drops off her carbon dioxide at the pulmonary sac and has them refueled into oxygen. AE3803’s senior AA5100 then joins up with her and they separate at the pulmonary vein. AA5100 does voice her concern for AE3803 as she’s known for being a magnet for trouble, but AE3803 reassures her senior that she’ll be fine.

Eventually, AE3803 is attacked by a germ who demands she hand over her oxygen. Trapped at a dead end, AE3803 is rescued by a cell in a yellow hazmat suit called a Monocyte who after exterminating the germ awkwardly runs off. U-1146 then pops out of an underground grate, which scares AE3803. Curious to know more about the cell, U-1146 explains to AE3803 its name and a bit of its background. After an explanation on the Monocyte, AE3803 and U-1146 part ways and in a rest stop area by the Pulmonary Vein, AE3803 sees the Monocyte again and runs into the Platelet again.

Afterward, a swarm of Staphylococcus Aureus appear from an abrasion in the nasal cavity area. Once again caught in the middle of an invasion, AE3803 is attacked by one of the Staphylococcus Aureus, but is rescued by U-1146. His fellow White Blood Cells then arrive at the scene and help exterminate some of the Staphylococcus Aureus causes its numbers to dwindle. Confident they’ll have the upper hand against the virus, the Staphylococcus Aureus unprecedentedly merges together into a giant version of itself.

The newly formed giant Staphylococcus Aureus easily overpowers the White Blood Cells and uses fibrin against them in a move called “Coagulase”. It’s revealed that the Staphylococcus Aureus who invaded the body before was a younger cousin of the current virus, and she was there that day for revenge against the White Blood Cells. Before the Staphylococcus Aureus could make the finishing move on the White Blood Cells, a group of Monocytes appear and then take off their suits revealing themselves to be Macrophages. From there, they overpower the Staphylococcus Aureus causing it to demerge. Left by its lonesome the single Staphylococcus Aureus tries to attack the Macrophage but dies in the process.

With the Staphylococcus Aureus problem dealt with, AE3803 approaches the head Macrophage and asks how they can perform two jobs at once. Politely the Macrophage answers that it's a secret.

## Characters

### Returning characters

* AE3803
* Platelet
* AA5100
* U-1146
* Monocyte
* Staphylococcus Aureus
* U-4989
* Macrophage
036

ROMANJI
  GENDER
  SPECIES

**036**(修) (おさむ, *Osamu*?) is one of the characters in *Cells that Don't Work*.

## Appearance

036 has dark hair and eyes. He wears glasses. He still wears the uniform of erythroblasts, and the hat with the puff that represents his non-enucleated status.

## Personality

036 is an incredibly studious cell who enjoys picking up new knowledge from books. As a result, he is well-read on many of the functions and minute details of the human body. Despite this, he is unwilling to enucleate due to his paranoia that he is not "fully prepared" to join the workforce and for the time seems to have no intention to leave the bone marrow. Even with his paranoia, he can be rather smug when correcting his peers on topics he has read into.
Helper T Cell (Friend)

Helper T Cell (ヘルパーＴ細胞 *Herupā Tī Saibō***?**) is a minor character in Cells at Work! Friend.

## Helper T Cell (Friend)

### Gender

Male

He is in charge of commanding and deploying the Killer T cells during viral infections.

## Appearance

Helper T Cell has an average, fairly slender build and medium blonde-brown hair. He wears a monocle and the standard Helper T uniform, although he also wears a dark jacket loosely draped over his shoulders. Interestingly, he always wears a "cat smile" expression.

## Personality

Helper T cell appears to be rather relaxed and somewhat helpless at skills outside of his immediate job scope, such as in being tidy. He is prone to impulse purchases, often winding up with a messy hoard in the various Lymph Node offices that he ultimately has to seek help to tidy. In times of prolonged peace, there is little active duty for him to execute, causing him to overly lax and snack to kill time, being completely unaware of any weight gain until directly addressed by other cells.

## History

He attended Thymus School alongside Regulatory T and Killer T when they were all immature thymocytes. He appeared to be a model student of sorts, being both decisively determined and respectably strong despite his rather scrawny build. He does not seem to recognize Killer T as the black-haired kid from then, as he has since dyed his hair blonde.

## Abilities

* He is a white blood cell that provides help to defend the body without having to step foot into a battlefield.
	+ **Overall Abilities**: Although he was never shown to fight pathogenic cells physically, he knows the basics of threat termination as he had been through T Cell training.
	+ Commander: Leads the Killer T Cell division into action and commands them.

## Trivia

* He has always intended to become a Helper T cell, even going so far as to be confident that he would qualify when writing a letter to his future self.
* He was primarily friends with Regulatory T, and seemed to not be as close with Killer T.
* He briefly wonders how "that black haired kid" was doing, implying that he still remembers and holds some concern for him. Ironically, he mentions this in front of Killer T, who was the black-haired kid in question.
Killer T Division

**Killer T Division** is one of the immune forces in the body that is made out of *T cells*. They are white blood cells that are adaptive to the situation. In a human body, roughly less than 30% are T cells.

They follow orders from other T cells, namely Helper T Cell and Regulatory T Cell, and live in lymphocyte ducts that exist within the lymphatic system. They specialize in terminating infected cells, but not bacteria, and are only dispatched when there is a demand for their assistance.

## Nature

They have the tendency to be loud, rude and rambunctious, though still have an innate nature to care for the body. Like other immune cells, non-immune cells tend to distance themselves from them due to their violent lifestyles. Killer T cells seem to have a code of not being involved with other cells as it will make their jobs of terminating infected cells harder (as expressed by Killer T Cell).

As immature thymocytes, they are raised and trained in the thymus gland, it is said that only 2% of the trainees last long enough to become matured T cells. Here, their ability to distinguish between normal and infected cells are tested. They are trained by Dendritic Cells,  Macrophages and Monocytes.

They are Naive T cells until they encounter their first virus, or until they are activated by outside help, which allows them to be an Effector T Cell for a short period of time against a specific enemy. As Killer T Cells, any member may play the role of a Memory T Cell if they have encountered the same strand of pathogen before.

## Uniform

All Killer T cells wear the same uniform. They wear black buttoned shirts with two front pockets and black pants along with a belt. They also wear black shoes and a cap with "KILL" printed on it. When a Killer T cell becomes a memory T cell during an invasion, the cap will be switched into another cap with "MEMORY" to avoid confusion between the two cells. Naive T cells also shares the same uniform but they wear caps with "NAIVE" instead.

## Known Members

* Helper T Cell (Commander)
* Regulatory T Cell
* Killer T Cell
* Memory T Cell
* Naive T Cell
Natural Killer Cell (Black)

ROMANJI
  ALIASES
  GENDER
  SPECIES

**Natural Killer Cell** (ナチュラルキラー細胞, *Nachuraru Kirā Saibō*) is a minor character in Cells at Work! BLACK.

## Appearance

She is a muscular and fit woman. She wears a tank top, shorts, and boots.

## Background

She is a white blood cell, specifically a **Lymphocyte** (Natural Killer Cell). She is tasked to identify, track, and kill viruses and infected cells by moving freely from tissue to tissue.

## Abilities

NK Cell has heightened senses compared to other lymphocytes, and it is her task to detect disguised or hidden infected cells and viruses.

* **Overall Abilities**: She is extremely skilled at killing pathogenic cells. She can single-handedly finish the tasks of a few killer T cells. She is swift and strong and capable of breaking tissue walls during fights.
* **Saber Proficiency**: She can professionally wield a saber sword.
* **Cytotoxic**: NK Cell can kill aberrant or normal cells under discretion.
* **Adaptive Memory**: She can remember previous infected cells and their attack moves for easier termination in case one of them appears again in the future.
* **Transmigrate**: She is able to move freely through tissues to reach her target faster.

## Trivia

* Natural killer cells and killer T cells resembles brothers-in-arm because of their complementary roles for each other.
Episode 5 (CaW CB)

## Overwork, Hair Loss, and Delirium

"**Overwork, Hair Loss, and Delirium**" (過重労働、脱毛、錯乱, *Kajū Rōdō, Datsumō, Sakuran*?) is the 5th episode of the **Cells at Work! CODE BLACK!** anime adaption.

## Plot

After overcoming numerous obstacles, rookie red blood cell, AA2153 has now confidence in his work. One of AA2153 deliveries sends the rookie to the Hair Matrix Cells and bumps into U-1196 exercising despite her injuries. It's not in her nature to stay still.

The two reminisce about the battle between the Neutrophils and the Gonococci. U-1196 thanks the rookie for saving her life by distracting the bacteria. Moreover, the white blood cell tells the red blood cells that there were countless casualties on the Neutrophils' side during Gonococci's infection. As a result, Killer T Cells are overworked. She gets berated by the passing Killer T Cells. AA2153 tries to defend the Neutrophils, but the latter stops him. It's true that due to the white blood cells' dwindling numbers that they've put unnecessary strain on the Killer T Cells.

The Helper T Cells get an alert of an invasion of foreign substance in the blood vessels near the nasal cavity and send out the Killer T Cells despite the subordinates' warning.

AA2153 finds out that inflammation is found in the hair follicles. It seems the Killer T Cells have caused the incident. The latter has gone haywire and attacked the Hair Matrix Cells after mistaking them for cancer cells. Their actions cause the hair to begin falling out.

To help stop them, AA2153 organizes the red blood cells to deliver oxygen to the hair cells, hoping to sustain them. But things get a lot worse when the deranged Helper T Cell releases Cytokines to make the Killer T Cells go even crazier.

Luckily, things soon calm down thanks to the administration of Steriods - depicted as battle droids that restrain the Killer T Cells and Helper T Cells.

Elsewhere a healed U-1196 overhears cells talking about the incident with the T Cells.

After saving the hair roots, AA2153 questions the point of working hard as yet another problem arises, this time in the urinary tract.

## Characters

### New characters

* Killer T Cells (BLACK)
* Helper T Cell (BLACK)
* Hair Matrix Cells
* Pigment Cell
* Steroids
* Dendritic Cell (BLACK)

## Returning characters

* AA2153
* U-1196
Kupffer Cell

* BLACK ▾

* Manga
* Anime

* Manga (color)
* Manga (B&W)
  ROMANJI
  GENDER
  SPECIES
  MANGA DEBUT

**Kupffer cells** are minor characters in Cells at Work!.

## Appearance

She wears a Middle Eastern style of clothing similar to an Egyptian *bedlah,* possibly with aspects of the costumes worn by Tawaif women.

## Personality

Not much is known about the Kupffer Cell’s personality.
ME0808

GENDER
  SPECIES

**ME0808** (credited as Red Blood Cell 3 (赤血球３, *Yuketsu Sekkekyū 3*?) in the anime) is a red blood cell working inside the host's body.

## Appearance

ME0808 has near shoulder length brown hair and eyes. She wears a standard red blood cell uniform pair of black spectacles.

## Personality

Not much is known about ME0808's personality, however, she is notably confused when AE3803 confuses her with NT4201.

## Background

### History

AE3803 mistakes her for NT4201 while AE3803 was lamenting about how worried she is to be thought of as a bad senior to NT4201.

## Abilities

As a red blood cell, she is a worker that is unable to protect herself. Therefore her job is to only transport goods.

* **Overall Abilities**: Despite having no abilities to defend herself, she is capable of transporting goods into all corners of the body with high acceleration. She's even adept at getting through incredibly tight spaces, albeit with considerable difficulty.
* **Reversible Jacket**: All red blood cells wear a reversible jacket that helps them indicate their speed when moving around in either veins or arteries. The jacket has extendable sleeves and zips up for colder weather.
Heat Stress (Manga)

## Heat Stress

**Heat Stress** (熱中症, *Netchūshō*) is the 6th chapter in the Cells at Work! (Manga).

## Summary

It was a hot day, the body suffers from heat stroke, leading to a heat wave inside and the supply of fluids being depleted. To make matters worse, a Bacillus Cereus, who is not bothered by the heat, invades the body. While the other cells struggle to cope with the extreme heat, U-1146 pursues the bacterium, but grows fatigued. Just when it seems that all is lost, the body gets an injection of fluids, reviving everyone and allowing U-1146 to kill the bacterium.
Episode 15

## Acquired Immunity

"**Acquired Immunity/Peyer's Patch**" (獲得免疫/パイエル板, *Kakutoku Men'eki/Paieru-ban*?) is the fifteenth episode of the *Cells at Work!* anime.

## Synopsis

Memory Cell has a dream where the arrival of messengers from the outside signals the end of the world. As if his dream has become reality, unidentified enemies suddenly enter the body.

## Plot

**Acquired Immunity**

One day, Memory Cell receives a strange vision foretelling the destruction of the body. Thus, leading him to believe he has the power to see the future. But B Cell soon hit him on the head, bringing him back to reality.

And his vision becomes real when the Mumps virus invades the Parotid gland. The immune cells try to fight them. However, things get a lot worse. B Cell needs to create antibodies based on Memory Cell's information. But the latter is obsessed with trying to see the future again.

Left with no choice, B Cell slaps. Memory Cell realizes he actually saw his memories of the past when the body received a Mumps vaccine.

Based on this information, B Cell creates antibodies and manages to destroy the virus. After the incident, B Cell explains why it took him so long to get rid of the Mumps virus. Thus, leading the cells to beat the Memory Cell up.

**Peyer's Patch**

U-1146 takes AE3803 and NT4201 on a tour of the small intestine. But the pleasant outing takes a turn when Killer T Cell scolds U-1146 for not doing his job.

To make matters worse, a Campylobacter invades the small intestine and takes an Intestinal epithelial cells hostage. The white blood cells surrender and give in to the bacteria's demands to humiliate themselves.

But this seems to be part of a plan. In reality, the white blood cells were slowly luring the bacteria to a Peyer's patch where the bacteria are ambushed and destroyed.

After the incident, Killer T Cell apologizes to U-1146. But he retracts his apology when U-1146 realizes he forgot about the two red blood cells and rushes over to check on them.

## Characters

### New characters

* Mumps virus
* Campylobacter
* Intestinal epithelial cells
* Microfold Cell

### Returning characters

* Memory Cell
* B Cell
* U-1146
* AE3803
* NT4201
* Killer T Cell
4405

ROMANJI
  GENDER
  SPECIES

**4405**(吾翔) (しょうご, *Shōgo*?) is an erythroblast in *Cells that Don't Work*. He harbors a feeling towards 0001.

## Trivia

His name Shōgo is derived from the *goroawase* reading of his number 4405, shi-yo-o-go (しよおご, *shi-yo-o-go*?). The kanji in his name can be interpreted to mean "I soar".
Campylobacter

ROMANJI
  ENGLISH

***Campylobacter*** (カンピロバクター, *Kanpirobakutā*?) is a minor character that appears throughout the *Cells at Work!* series.

## Appearance

Campylobacter has a blue color scheme, and like its real-life counterpart, it has a spiral-shaped body. It has a humanoid head and torso at the front, with a shark head at the end of its flagellum (tail).

## Personality

Like all bad bacteria, it has a nefarious personality and seeks to infect the host it invades.

## History

The Campylobacter along with an assortment of other bacteria invade the host body, when it gets an abrasive wound in its body.
Virus

A **Virus** is a pathogen that can only reproduce by infecting cells. If it infuses with a cell, it adds its genetic code (DNA/RNA) to quickly produce thousands of near-exact copies of the original virus. Viruses are the cause of certain diseases, such as influenza, dengue fever, and the Common Cold.
Cells at Work! (Movie)

***Cells at Work!* The Return of the Strongest Enemy. A Huge Uproar Inside the Body's "Bowels"!** (*"Hataraku Saibō!!" Saikyō no Teki, Futatabi. Karada no Naka wa "Chō" Ōsawagi!*) is an animated theatrical movie based on a story from Volume 5 of the original manga series. It was released on September 5, 2020 in Japan.

## Staff

* Hirofumi Ogura - Director
* Yuuko Kakihara - Writer
* Kenichiro Suehiro & MAYUKO - Composers

## Cast

* Yuri Yoshida as Lactic Acid Bacteria [Kuro)
* Rie Takahashi as Lactic Acid Bacteria (Aka)
* Natsumi Fujiwara as Lactic Acid Bacteria (Panda)
* Yurika Kubo as Lactic Acid Bacteria (Buchi)
Cells at Work!: Illegal

**Cells at Work!: Illegal** (はたらく細胞イリーガル) is a spin-off series focusing on the cells of a person taking illegal substances, written and illustrated by Kae Hashimoto. It began serialization in Kodansha's YanMaga Web digital manga platform on February 1, 2022. The series ended with the serialization on July 18, 2023.
1516

ROMANJI
  ALIASES
  GENDER
  SPECIES

**1516**(彦十郎) (ひこじゅうろう, *Hikojūrō*?) is one of the characters in *Cells that Don't Work*.

## Appearance

1516 has moderately dark hair and dark eyes in a flat bob cut. He wears a modified erythroblast uniform with puffy shorts rather than long pants, and the cap that represents his un-nucleated status. His appearance is extremely focused on being "cute".

## Personality

1516 is insecure about his height due to the ingrained idea of smallness being cute, and often will behave and dress in ways that he considers "cute". He is unwilling to enucleate due to the erythrocyte uniform being "not cute at all" in his opinion. He also often requests to be referred to as Ichigo (Japanese for strawberry) as it is cute, and dislikes being called "senpai" as it reinforces that he is one of the oldest erythroblasts still in the red bone marrow.
3033

**3033** is a minor character featured in *Cells at Work! Friend.*

## Appearance

3033 has light hair tied in a low ponytail, light-colored eyes and wears the standard White Blood Cell uniform.

## Personality

3033 is a natural leader, described by 2145 as the "class president type" - with rather high expectations but enough conviction that their fellow neutrophils naturally fall in line and work together to finish a job. Despite this, he seems to be rather abrasive and prone to quarrels with the Killer T cells and often requires 2145's mediation to ease the tensions when both divisions are deployed together in an emergency. He is also immensely tactical, being able to formulate a plan and put out instructions quickly to his fellow neutrophils.

## Background

### History

3033 was a Neutrophilic myelocyte of the same group as 2145. He often had to retrieve the latter from the Eosinophilic myelocyte classroom, showing his ability to quickly take charge.

## Abilities

Like all neutrophils, he possesses abilities that enable him to quickly terminate threats.

* **Overall Abilities**: As one of the most abundant white blood cells, he can terminate any kind of harmful cells to the body from germs to cancer cells. He is incredibly agile and strong as he is able to slice common bacterium in half with one blow.
* **Phagocytosis**: White blood cells can analyze an unknown foreign cell by eating them which will help them identify its species, or consume them as food.
* **Knife Proficiency**: He is an efficient knife-fighter just like all neutrophils. Along with his agility to aid him, he can swiftly terminate a group of intruders alone. He is also able to block up to multiple attacks from aggressive bacterium continuously. Apart from close-range combat, he is able to throw his knives with accurate aim if an enemy is far beyond reach.
* **Receptor**: All neutrophils have a receptor that acts like a radar which alerts them whenever a threat is near.
* **L-Selectin**: A feature in their uniforms that let them adhere to certain surfaces
* **Wandering Cell**: He is a cell that is not fixed in place and able to move freely around the blood vessel.
* **Transmigrate**: He is able to move freely inside a tissue and reach his destination much faster.

## Trivia

* 3033 does not like mashed bean paste.
* 3033 had shorter untied hair as a myelocyte.
Macrophage Division

**Macrophage Division** is one of the immune forces in the body that is made out of Macrophages. They could interchange into Monocytes. They plays many roles in the body, ranging from cell teacher, mess cleaner, and professional killer.

They are tend to be easy-going on any situation. They usually use a huge blunt object as their weapon.

They wear the same uniform, depending on the situation:

* When they migrate from blood to tissue (become Macrophages), they wear a nurse uniform from the late 19th Century.
* When they migrate from tissue to blood (become Monocytes), they wear a hazmat suit.

## Cells at Work: Code Black

In Code Black their appearances look similar to the ones in the original but they have pink hair and their dresses are of similar coloration. Due to the poorly maintained body they're working in, they tend to be stressed out and get agitated easily but are still able to put on a friendly demeanor with a smile on their faces.
AC9171

* Manga
  GENDER
  SPECIES

**AC9171** is a red blood cell in the *Cells at Work!* series that works inside the host's body.

## Appearance

AC9171 has dark brown hair and eyes. As a red blood cell, he wears the standard red blood cell uniform.

## Personality

Not much is known about AC9171, but he acted cordial toward a female red blood cell.

## History

He is a target of Pneumonia Coccus after U-1146 gives chase to him in the alveolus. He is seen transporting some nutrients to be delivered while being targeted.
Cells at Work! Friend

* Banner
* Vol 1
* Vol 2
* Vol 3
* Vol 4
* Vol 5

### Original run

26th February 2019 - 13th April 2021 (JP)8th October 2019 - ? (EN)10th September 2020 - ? (TW)

### Chapters

48

***Cells at Work! Friend*** (はたらく細胞フレンド, *Hataraku Saibō FURENDO*?) is a spin-off of *Cells at Work!* written by Kanna Kurono, illustrated by Mio Izumi, and supervised by Akane Shimizu.

It has been published by Kodansha America as **Cells at Work and Friends!** in ebook format only. Volume 6 is not yet available in English.
 A Traditional Chinese localization published by Tong Li Publishing Co. is available for Volume 1 in print and ebook format.

## Plot

The story, unlike the original, follows a Killer T Squad Leader and his problems in daily life. The main plot does not revolve around saving the body from various dangers, but how he tries to make friends despite his social anxiety.

Squad Leader is extremely hardworking and among the strongest Killer T cells in the body, but despite that, he doesn't seem to be able to make friends. Whether it be with his old classmates, subordinates, or even people around him, he just can't seem to make it work.
Food Poisoning (Manga)

## Food Poisoning

**Food Poisoning** is the 5th chapter of the Cells at Work! (Manga).

## Summary

AE3803 and U-1146 are taking a trip on stomach. They then move along to the cafetaria. At cafetaria, Eosinophil is fighting off a bacteria. She is cornered, but U-1146 helped her just in time. After she introduces herself, a grumble is happening in stomach.