Saten Ruiko/Chronology (Toaru Kagaku no Railgun)

* Anime
* Novel
* Manga
* Railgun
* Astral Buddy
* Imaginary Fest

## Abilities

### Esper Power

**Aero Hand** (空力使い (エアロハンド) , *Kūryoku Tsukai (Earo Hando)*?, lit. "Vacuum User")

## Debuts

### Manga

Index Chapter 65 (cameo)
Railgun Chapter 4
Accelerator Chapter 6 (cameo)
 Astral Buddy Chapter 4

### Anime

Railgun Episode 1
 Miracle of Endymion
 Accelerator Episode 4

### Video Game

Railgun PSP Game

This article covers Saten Ruiko's chronological history in *Toaru Kagaku no Railgun*.

## Chronology

### Toaru Kagaku no Railgun

#### Level Upper Arc

*Main article: Level Upper Arc*
Unlike the manga, Saten has a much more prominent role in the anime series.

She meets Mikoto earlier and in the first episode, she doubts the personality of Mikoto as she was a Level 5, supposedly an arrogant and snobbish type. However, an incident occurs involving young children and she does her best to aid Mikoto and the others despite having no abilities at all which, impresses Mikoto.

In a later episode, she also gains the affection of Juufuku Miho a Level Upper user after she said as a passing remark that she liked her eyebrows during her visit to the School Garden, in which she was attacked by her for wearing a Tokiwadai uniform .

Later, she becomes envious by the fact that every one of her friends had some sort of ability and is then curious about the Level Upper. After obtaining it, she becomes alienated by Mikoto's words saying that levels and abilities were not important. To Saten, wanting to gain abilities was the reason why she went to Academy City. She finally uses the Level Upper after being caught helpless when trying to save Koujun Kikuhiko from Trick's gang and then witnesses the battle between Kuroko and Trick, where Kuroko obtained injuries but is nevertheless successful and obtaining the source of Level Upper. She invites Makochin, Akemi, and Muu-chan to use the Level Upper and Saten seems to display powers over the wind; however, they were all soon struck by the side-effect of using the Level Upper, becoming comatose. She later goes back to her dorm and calls Uiharu that she had Level Upper and had used it along with her friends. Blaming herself for what had happened, Saten is tearfully told by Uiharu that everything was going to be alright and that she would be there to wake Saten up. She goes on to say Saten would always be Saten to her regardless of her abilities. This makes Saten feel better, but when Uiharu arrived at her dormitory, Saten had already become unconscious. She was later taken to the hospital by Uiharu.

After the defeat of Kiyama Harumi and the AIM Burst creature, she wakes up from her coma and is greeted by Uiharu on the rooftop of the hospital. Saten apologizes to Uiharu and realized that she almost lost something much more precious to her than abilities. She then proceeded to lift Uiharu's skirt once more and the quartet reunites again.

Since she was a user of the Level Upper, she has to take supplementary lessons at A Certain High School. There she meets their teacher, Tsukuyomi Komoe, who teaches them the importance of having a Personal Reality for ability development. There, she also once again meets with Juufuku Miho, who shows a noticeable amount of affection for her. During running laps, Saten pushes herself to keep on running despite wanting to stop earlier and manages to be one of the last ones still running. There, Elder Sister argues with Yomikawa Aiho stating that this was just simply punishment for using Level Upper. Aiho rebuffs her stating that this was training to surpass one's limits, citing Saten and another runner as examples. She tells them that the development of abilities is akin in surpassing one's own limits. After going inside because of rain, Saten confronts Elder Sister on her views on why this was like punishment and says that it was only natural for them to be punished because they were cheating (using Level Upper) in achieving abilities, which her friends agreed on.

Near the end of the lessons, after taking in what Komoe said about achieving one's own Personal Reality and surpassing one's own limit, the Level Upper users were tested on how far their abilities had gone. After having witnessed Saten's confrontation with Elder Sister, Juufuku Miho decides to follow her example and live strongly like her from now on. Although Saten remains a Level 0, she is determined to keep on trying.

#### Big Spider Arc

*Main article: Big Spider Arc*
She first appears in a cafe along with Mikoto, Kuroko, and Uiharu where they talk about the recent attacks on espers by Big Spider. Mikoto discusses how she does not like people who give up easily, which Saten tells her that she seems to be describing her. She later appears with Uiharu eating together, talking about how she understands the feelings of Skill-Outs and reassures Uiharu that she would never give up again.

After hearing about Kurozuma Wataru's and Konori Mii's confrontation, she becomes curious of their past. She later visit Konori Mii's apartment along with Mikoto, Kuroko, and Uiharu, where Yanagisako Aomi, who is Mii's roommate, tells them that Mii was previously a member of Big Spider, much to her and everyone else's surprise. After leaving, she replies to Mikoto's statement about Mii, where Saten tells her that Mikoto should not look at people's past as simply what makes them right now. She later stops and explains that she was not trying to contradict her after seeing the reactions of Mikoto, Kuroko, and Uiharu.

#### Poltergeist Arc

*Main article: Poltergeist Arc*
During the Poltergeist Incidents that were occurring around the city, Saten befriends Uiharu's new friend, Haruue Erii, and helps both Uiharu and Haruee in fixing their yukatas for an upcoming evening festival. During the festival, another Poltergeist incident occurs, though everyone is left unscathed, partially thanks to the help of Multi Active Rescue.

In later episodes, Kuroko and Uiharu come to a disagreement on Haruee's involvement in the Poltergeist Incidents. Saten is often seen trying to calm down the situation.

After the group discovers Therestina's true identity, Saten forces both and Uiharu and Kuroko to apologize to each other after treating each other badly the past few days. Saten also chastises Mikoto for not telling anyone where she went off to (the Advanced Education Department and a hospital) and reminds her that she was not alone. During the preparations in confronting Therestina, Saten equips herself with a metal baseball bat.

She joins Uiharu in guiding Kiyama Harumi in finding the Child Errors that were kidnapped by Therestina. When they arrive at the location, they realize Therestina had set-up a trap, Capacity Down. Saten, however, is unaffected by Therestina's Capacity Down because she is a Level 0. She later interprets Uiharu's queries on Therestina about the location of the sound system that controlled the Capacity Down. Through the sound system, Saten tells Therestina to not to hurt her friends and then proceeded to destroy it with her baseball bat, allowing Mikoto to defeat Therestina. It is this heroic act that finally earns her Kuroko's respect, making her finally regard her as a close friend rather than a casual acquaintance.

She is last seen with Uiharu, Misaka and Kuroko being late for the special event held by Haruee Erii for Kiyama Harumi.

#### Sisters Arc

*Main article: Sisters Arc*
Having heard of rumors of someone dropping cash cards, Saten uses her "nose" to find them and invites Mikoto to join her. She later gives Mikoto her share of bank cards and leaves afterwards, stating that she would like to bring Uiharu next time.

In a later day, Saten and Uiharu meet up with Kuroko to discuss why Mikoto suddenly seemed preoccupied. Saten concludes that Mikoto has boy problems, which shocks Kuroko and makes Uiharu blush. Their conversation is cut-off when they hear a vending machine alarm, which Kuroko goes to investigate.

Near the end of the arc, Saten is asked by Mikoto to help her bake cookies for Touma (after he told Mikoto that he likes homemade cookies). Here, Saten is relieved that Mikoto is back to her normal self again and teases Mikoto about a certain boy, much to Mikoto's embarrassment.

#### Silent Party Arc

*Main article: Silent Party Arc*
Although for the most part of the arc she is seen only as a caretaker of Febrie and keeps Uiharu company in her apartment after Erii moved away, Saten's role is major in the anime-original arc. She is the one who concocted a plan to get Febrie and Mikoto closer as the former doesn't like her for some reason and the latter is trying to desperately to become friends with her. When Mikoto tells them of Febrie's involvement in the dark side of Academy City, imploring for their aid to save her, Saten and the others jump at the call. She is later tasked in finding a way to make more of the lollipops that keep Febrie alive and visits Heaven Canceller for that purpose, though the results are not well. She is later seen aiding Kuroko in breaking out Mikoto after she is caught by STUDY as a lookout.

After deciding to take on STUDY and the Silent Party without any help at all from Anti-Skill for the sake of Febrie and Janie, Febrie's sister, Saten decide to help the others. She is given the manual on how to pilot a Ekaterina II S along with Uiharu by Kongou Mitsuko, and memorizes it in a single night while making rice balls with Febrie. She takes her bat and with Uiharu, who takes control of Security robots guard an entrance to the Academy City Research Exhibition Assembly, where the rebellion of STUDY will take place using 20,000 Powered Suits controlled by Diffusion Ghost. They are later joined by a multitude of Judgment members. During the offensive, despite being an ordinary middleschooler without any training and experience in battle, she is able to dodge the attacks of the Powered Suits, and with the help of other Judgment members take them down. Later, Madarame Kenji and Kosako Shunichi of STUDY try to counterattack using their large mobile weapons. As they retreat Uiharu trips but is soon saved by the arrival of Yomikawa Aiho bringing the Ekaterina II S, and knocking out their mobile machines. This apparently gave the girls enough time to pilot and transform it into an even larger mecha. Saten and Uiharu's memorizing a manual in a single night proves useful as they are able to easily to take down the two mobile weapons.

Saten and Uiharu are part of the little conference held after Mikoto defeats Aritomi Haruki, STUDY's leader, who has launched the AIM bomb. As the other girls deal with that, Saten arrives in the laboratory where they kept Janie, and after inquiring from Haruki, gets more of the lollipops for Febrie.Due to Haruki's use of the AIM bomb, Janie becomes part of the system that has now gone out of control, making any sort of connection impossible as it will kill her. Despite this, Shinobu still attempts to save Janie from the runaway system. And as she is not taking any outside input, she has Febrie's "strong emotions" to reach her, as they share the same biological base. A plan that Saten Ruiko says is pretty much the "power of love," much to Shinobu's embarrassment.

Her untested plan is successful, with a little help from the Sister clones, stating that Janie and Febrie are like sisters to them as well, giving the computers a boost to allow Febrie's emotions to reach Janie. She later awakens, and Febrie greets her a good morning. Saten urges Febrie to give to Shinobu her gift, and here with tears in her eyes, Shinobu accepts the riceball gift that Febrie made for her the other night. Here, Shinobu says to the two of them that she has a lot of things she wants for them to see.

As Janie and Febrie are in a Kongou airline runway, preparing to leave to the outside for body readjustments, Saten cries over Febrie leaving. Uiharu tries to console her but also falls into tears. And thus, the fellowship, though bound by friendship and love, part ways.

#### Daihasei Festival Arc

*Main article: Daihasei Festival Arc (Railgun)*
Kuroko, Saten, and Uiharu appear right before Mikoto's competition in the three-legged race with her partner Kongou Mitsuko. Saten tells Uiharu of a substance known as Shadow Metal that is formed by the clashing of multiple espers, which can be sold for a large sum of money. Kuroko then appears right after, angry at Saten for spreading rumors again, to which forces her to distract and stay her anger by pointing out that Mikoto's competition is about to begin.