Shinu Zensuke

**Shinu Zensuke** (*前記山崎 Zensuke Shinu*), also known as **Marrow Hero: Thanatos** is the #7th ranked Pro Hero and the current head of the Zensuke Family that originates from Brooklyn, New York. Shinu is quite known for being in charge of the Zensuke Family after defeating the previous head, Faust Zensuke, after he killed Shinu's parents to take the role for himself. Shinu strives to rebuild the Zensuke Family to it's former glory after he felt that Faust at tarnished it's name.

## Appearance

Shinu is a very tall man of a very muscular build that has black hair and grey eyes. He is also known for having pale skin and a cross-like mark that extends down to from the left side of his face to the right side of his face across his forehead. His civilian clothes involves him wearing a very large black coat with white fur at the top. He also wears a brown shirt with dark brown pants and boots that has a black belt around the waist.

His hero costume is very unique as it appears to be a dark blue stretch suit that has bones placed on many places on the suit. Shinu himself states the material is made of a self repairing agent that is meant to adjust to whenever he uses his powers excessively so that he doesn't reveal too much of his body. The costume itself also appears to be fitted to the skeletal wings as well to give Shinu better control over his gliding capabilities. The bones on the suit itself has been stated to been made from Shinu's own, durable bones and that it took him months to have the suit properly made due to the time it takes for new bones to grow back in their place.

Shinu's hero costume.
Shinu at the age of 4

## Personality

Shinu, overall, is a very serious man that rarely expresses any other emotion than a cold, blank look. Shinu is often viewed as a man of few words rarely engaging in extended conversations unless it is something that benefits his line of work. Shinu also takes his job as a Pro Hero very seriously and doesn't hesitate to detain villains whenever they cause trouble. Shinu is often seen hanging around by himself, but will often come to the aid of heroes should they need the help. However, he would often criticize if they aren't doing a good job at what they are doing depending on the situation. This often stems from his time as the head of the Zensuke Family as, being a former mafia business group that focuses heavily on work and other important businesses, Shinu feels like he must keep the most important things on his mind.

On the topic of the Zensuke Family, Shinu is fiercely loyal to his clan and, being the head of it, always tries to paint them in a good light. After defeating the previous leader Hex Zensuke for control after the man started to ruin the reputation of the Zensuke Family, Shinu sought that it was his duty to restore their reputation from the ground up. This would be shown as he would start to offer more positive services such as loans toward others and offering alternatives to pay them back just in case whoever requests their services cannot pay it back in time. Shinu even enforces a strict "no killing" policy within the realms of the business saying that he does not want the Zensuke Family to be known as a family of killers. Even though Shinu himself would resort to killing, he deems as it is "only necessary" if he has no other choice. Shinu has a no tolerance whenever someone resorts to killing, but often waves it off saying things were done. Shinu is often busy with hero work and leaves managing the Zensuke Family to his younger brother, Hypnos Zensuke, in his stead.

    Shinu, if rarely, gets serious but whenever he does, he sports a very sinister smile. Being a Pro Hero, Shinu thinks very highly of his strength and feels like most villains are not worth his time even stating that the local police force can do the work for him. Shinu mentions that the Zensuke Family is also fond of martial arts and there are those of the warrior side that strive for good battles. Shinu was able to grow stronger thanks to his disposition and often felt he grew strong enough to defeat nearly anybody. However, if he finds someone that he deems a worthy opponent, even if it's against a villain, he will show great pleasure and start to fight with the most of his abilities.

Shinu's most defining trait itself is his complete coldness toward Death itself. Shinu has grown up watching his clan kill each other off for control, including his own parents. Because of this, Shinu has trained himself to view death as nothing but the inevitable and says that one must embrace it when the time comes. When he is forced to kill villains, he will give them a solemn prayer saying that they are in a better place. These even extends to heroes that have died in battle as he often states that he cannot mourn a death of someone if he could've been saving time avenging their deaths instead. This is often looked down upon by others, but others cannot deny his words carry some truth to them.

Despite his rather lone wolf disposition and his indifference to death itself, Shinu cares deeply for children, the Zensuke Family, and most of all his daughter Erinys Zensuke. Shinu views children and babies as signs of "flourishing life that needs to be protected" and will go out his way to help them out in need. Children even enjoy playing with his bones and Shinu tries his best to smile warmly around them as to not scare them off. Shinu is also extremely close with his brother, Hypnos, as they had each others backs since growing up around death and betrayal all of the time. This was shown where Shinu allows Hypnos to run the Zensuke Family in his stead and Hypnos recommended his brother ways to improve the Zensuke Family including having a child. As for Erinys, Shinu views her highly and is overprotective of her at times. Erinys, in turn, respects her father for being strong and strives to be a pro hero just like him.

## Abilities

**Superhuman Strength**: Shinu is an extremely strong man that is capable of suplexing men twice his size with ease. He can also punch through solid walls and bend over metal beams if they should get in his way. Alongside his quirk, Shinu has stated his bones are as strong as he is and these are the same bones that can rip through buildings with ease. Shinu himself is a man that often relies on his quirk a lot in battle, but can more than make up for it with the intensity of his attacks. He often uses a layer of bones to heighten the strength of his attacks even more as well.

### Quirk

    **Living Bone**: Thanatos' quirk allows him to turn his body into bone and use them for attacks. These bones can even be from the ones from within his body, although Thanatos himself recommends against using this as it takes away the bones from his body. These bones are extremely durable and sharp as they are able to tank most hits and being able to slice through solid stone. These bones can even be used in another variety of ways such as sprouting wings from his back and using them for pseudo flight. He can also use his bones to construct defenses for his allies whenever the need arises. This quirk also appears to have a passive ability for each time Thanatos' body recovers from a fight, he will gain a slight power boost based on the theory of "bones becoming stronger when healed from being broken." Although this is often said to have inherited trait from his mother who's Adaptability quirk allows her to get stronger when healing from each injury.

This is a quirk that Thanatos has to manage each day as it requires a sufficient amount of calcium in his body to even function properly. If his body is below the required amount, he will not even be able activate his powers and he compensates by carrying around calcium pills that he can only take in small doses each day. Shinu has also been practicing with his quirk since the age of 4 when he started to feel that he manipulate and turn parts of his body into bones.

## Equipment

**Calcium Monitor**: A special device that Shinu keeps around his wrist at all times in order to monitor his current calcium levels. According to Shinu and his doctor that gave him the device, the normal human body requires 2,500 mg a day with Shinu's in particular starting at 3,000mg. The gauge will be green if it's in-between 2,500mg and 3,000mg, yellow if it's in between 1,500mg and 2,000mg, and red if it's 1,000mg and below. If the monitor reaches red, it will emit a small alarm telling Shinu whenever he needs to get his calcium levels back up in order to use his powers properly. Eating calcium-rich foods such as dairy products, nuts, and certain vegetables will help to maintain his calcium levels without the need of medicine.

**Pill Dispenser**: On the side of his waist/belt, Shinu keeps a small pill dispenser that holds his calcium pills. According to him, these pills are meant to give him an instant calcium boost on the spot whenever he requires use of it during the middle of a fight. These pills are quite potent and can offer up to 1000mg levels of calcium each day. While Shinu can take two of these each day, he was informed that he cannot take these pills in a short amount of time and must wait 12 hours in order to take the other one. While the human body itself restores the max levels of calcium each day with a good nights sleep, using he pills to artifactually raise the level isn't recommended in the long run with Shinu often trying to focus on finishing the fight as fast as possible and getting to naturally raising his levels back to normal either by resting or eating healthy.

## History

Shinu grew up alongside his brother, Hypnos, as the two children of Hades Zensuke and Eris Zensuke with Hades, during the time, being the current head of the Zensuke Family. The Zensuke Family itself had always been a respected name throughout New York. However, it was also one of the biggest family clans around with others often trying to vie for control. Shinu had witnessed death throughout his entire life with all of these bloody battels that were being contested by those he was related to. Those that was deemed the true "villains" of the family. One of those in particular, Shinu's uncle, Faust Zensuke was an infamous villain at the time and one of the reasons why the Zensuke Family at the time started to receive a mixed reception. A cruel villain that was only interested in power, raided the company attempting to claim control over the family even willing to kill his own brother Hades. Hades and Eris were able to help their children escape, mainly thanks to Hades' Bone Control quirk and escaped into the streets. However, it was soon revealed that Hades and Eris lost their lives at the hands of Faust and his followers and took over the clan leaving a now orphaned Shinu and Hypnos to wander the streets.

Hypnos wondered what to do next as the younger, but taller brother was crying in the streets and Shinu knew he had to get stronger with his quirk so he can defeat Hades and claim control in his father's place. Shinu knew it will be tough but they just have to find a way to get together on their own with Hypnos starting to lose hope that they won't accomplish that. Suddenly, a retired hero by the name of Byron Nexius, the living skeleton, walks by and sees the two boys around. Shinu knows of Bryon by his hero name of "Skull Knight" who used to help his father in the past. Bryon asks of the two boy's situations and Shinu explained everything how Faust took control over the Zensuke Family and killed his and Hypnos' parents. Byron was upset to hear that they are dead but knows it won't be easy to take him out due to having control over the Zensuke Family. Byron then decides to take the boys in for himself and help train them to be those that opposes villains: as heroes. Byron recommended they enlist in school where they would go on to ace their classes, especially in Shinu's case who was known for being an expert in using his own quirk. Byron, in particular, decided he would continue to help them out despite learning what they can already.

Byron knew of their quirks from before: Shinu with the ability to turn his body into bones or manipulate the ones from the inside while Hypnos has the ability to get stronger from ingesting calcium. He would train the two for years and years but know that the Zensuke Family name has been dragged into the mud. Faust was sending hits out on people and started to gander a mass amount of deaths on his plate. While Hypnos seemed to be upset by this, Shinu himself tells his brother that the deaths are irrelevant and that they must focus on getting stronger to take out Hypnos. Hypnos was shocked by this revelation, but decided that his brother was right and the two decided to continue onto their training. This training would go on for 20 more years where Byron felt like he has taught the two all they knew and told them has a retired hero past his prime, he can't do too much to help. Shinu assures to him that he and Hypnos would be fine and the two head off to confront Faust.

At the Zensuke Capitol Building, Shinu and Hypnos would call out Faust, but the arrogant villain felt like they weren't worth his time and instead sent his followers after the two. Using their strength, Shinu and Hypnos would fight their way through the followers and made it to the main hall being confronted by more of them. Hypnos knows that defeating Faust is the main goal and urges Shinu to go forward to fight him. Shinu agrees and quickly runs off forward leaving Hypnos to fight off the lesser members knowing he can handle himself. Shinu confronts Faust as he declares that he was going to rebuild the Zensuke Family name by taking him out. Faust was more surprised he wasn't there to avenge his parent's deaths by his own hands, but Shinu says he already moved past their deaths saying it's in the fast and hopes for a brighter future for the Zensuke Family knowing that is what his parents would've wanted. The two would engage in an intense battle with Shinu having trouble combating Faust and his Rage quirk, one that allows him to build strength through anger. As it seems like Faust was going in for the kill, Shinu reveals that he has awakened his quirk where he can decay the area around his bones causing other things to rot away as well through "osteonecrosis". After a long battle, Shinu was able to defeat Faust and finally end his long reign over the Zensuke Family.

Years later, Shinu would help to rebuild the Zensuke Family in a more positive light with his brother Hypnos helping as well as his assistant and Shinu himself even having his own daughter between it all. At one point, Shinu's exploits in stopping Faust and making sure the Zensuke Family remains in a positive light was enough for him to be called up to be represented as a Pro Hero. Although Shinu himself was a bit hesitant at first considering he was only into stopping Faust and focusing on the Zensuke Family. he decided to take the offer after remembering Byron trained him into becoming a hero as well. He also says that it can be tiring to manage the family as well and leaves his brother, Hypnos, to lead whenever he is away. Shinu takes on the name "Thanatos" and promises to bring death to all the villains that dare tries to oppose the public.

## Trivia

* Shinu and his disposition as a whole is a reference to the Underworld of Greek mythology with many of his family members sharing names with Underworld gods.
* Shinu hates drinking milk despite it making him healthier. However, he does prefer to drink chocolate milk.
* Shinu's hobbies include studying fossils and reading on extinct dinosaurs.