A Certain Scientific Railgun: Season 2

Following a run-in with Misaki Shokuhō, another Level 5 esper from Tokiwadai Middle School, Mikoto Misaka meets up with Kuroko Shirai, Kazari Uiharu, Ruiko Saten, and Erii Haruue as they visit Banri Edasaki in a hospital. While Erii rekindles with Banri, who is undergoing physiotherapy, Mikoto tries to come up with a way to surprise Banri with a present everyone bought for her, only to realize she had left the bag containing the present in Banri's ward. Meanwhile, a criminal patient that was und

Mikoto dreams of her younger self being approached by scientists wanting to use her DNA map to help cure patients with muscular dystrophy. The next morning, Kuroko tries to take Mikoto through an alleyway to get to the mall, and they encounter a few people passing by. They learn about envelopes containing cash cards being placed in the alleyways, piquing people's curiosity to search for them. After running into Ruiko, who is also on the hunt for the envelopes, Mikoto overhears some Skill-Outs wh

Mikoto is reminded of rumors about having a clone and attempts to question the girl, who was responsible for distributing the envelopes to fill the alleyways that security cameras cannot reach with human eyes. However, the girl leaves after inadvertently setting the building on fire whilst burning the evidence, simply stating Mikoto is better off not knowing as she would be unable to stop what was happening with her power. After saving the Skill-Outs, Mikoto looks up for information on the girl,

Three months earlier, in an unknown facility, a pair of women scientists named Yumi Kusakabe and Eiga Kanmi had mentored the birth of a clone of Mikoto, labeled Misaka 9982, and installed her memory functions via a capsule-like machine called Testament. Back in the present, Mikoto, who is feeling cheerful with the clone rumors being seemingly debunked, goes shopping with Kuroko and the others at the mall and helps Kazari and Erii buy a rice cooker whilst also picking out things for an upcoming s

After unwillingly helped her rescue a kitten from a tree, Mikoto tries to question Misaka 9982 but is unable to decipher a codeword that the clone gave. She follows her around in case she returns to her facility, but they end up doing some sisterly activities instead. Later that evening, as Misaka 9982 points out that she is not returning to her point of origin, Mikoto leaves her with the Gekota badge she won earlier. After Kazari helped her in decoding the codeword, Mikoto is horrified to learn

Mikoto unleashes her anger at Accelerator, who quickly deduces she is the original, and further enrages upon seeing Misaka 9982's torn leg and hearing Accelerator's selfish reasons for participating in the experiment. However, even her most powerful attacks are simply reflected by his ability. Just then, the fight is halted by the arrival of dozens of other Sisters, who request Accelerator to stop fighting Mikoto to avoid throwing off the experiment's calculations. As Accelerator takes his leave

Eliminating as many facilities involved with Project Level 6 Shift through electronic warfare before she gets shut out from their communication lines, Mikoto starts spending several nights attacking the other facilities directly. Kuroko, who has grown concerned about Mikoto constantly being out at night, comes across a group of girls who are looking for a "lucky card", based on an urban legend spawned from the cash card incident. The next day, Kuroko encounters one of the girls, Minori, saving h

With only two facilities remaining, Keitz calls upon the service of the mercenary team ITEM. As Mikoto infiltrates one of these facilities, she finds herself against one of its members, Frenda Seivelun, who causes trouble for her using flammable tape and stuffed dolls containing bombs. Meanwhile, Shinobu arrives at the other remaining facility, where they are attempting to transport the data whilst the other facility is being attacked. Mikoto chases down Frenda, who fills the room up with nitrog

Mikoto attempts to escape from Shizuri's attacks, which proves difficult due to ITEM's third member, Rikō Takitsubo, using her AIM Stalker ability to help Shizuri and Frenda home their attacks on her position. Meanwhile, Shinobu, who felt Mikoto should not have to carry her burden alone, sneaks into the basement of her facility where the incubated Sisters are being held, hoping to install emotions into all of the remaining Sisters via the Misaka Network in the hopes that it may move the organize

Coming face to face with Shizuri, Mikoto uses some of the explosive dolls that Frenda inadvertently left behind to compensate for her weakened powers. Shizuri fights off these dolls by using silicon shards cards to divide her lasers, but Mikoto manages to knock her out with one of the remaining dolls. After finding and destroying the facility's data bank, Mikoto finds herself on the run from an angered Shizuri. Fleeing to a bridge, Mikoto manages to get the best of Shizuri by using Frenda's flam

Mikoto runs into Tōma, who appears to have trouble remembering who she is, and vandalizes a vending machine to spit out drinks to compensate for some money it had stolen from him. Kuroko arrives on the scene and, despite not being pleased over the presence of a supposed "boyfriend", feels relieved that Mikoto appears to be back to her cheerful self. However, Mikoto's joy is short-lived when another Sister, Misaka 10031, appears before her, telling her in private that the experiments are still on

Mikoto resolves to hack into and destroy the Tree Diagram, the supercomputer responsible for the experiment's calculations, in the hope she may be able to stop them. Meanwhile, Tōma encounters Misaka 10032, who coerces him into helping her look after an abandoned kitten she had found. As Tōma goes into a bookstore to look for a book to help him with his cat, Misaka 10032 goes off to observe Accelerator as he begins his scheduled battle with Misaka 10031. Arriving at Tree Diagram's control center

Mikoto falls in despair, realizing that with Tree Diagram destroyed, she has no way of stopping the experiments. She tries to cling onto her cause by mercilessly destroying another facility, but loses all hope when she sees a live feed of Misaka 10031 being killed by Accelerator. As Accelerator reminisces about his first experiment and his first time killing a Sister, Tōma discovers Misaka 10031's corpse and calls the Anti-Skills to investigate it, only to find it gone when they arrive, with no

Tōma arrives at the Tokiwadai dorms, where he is reluctantly greeted by Kuroko. When the Tokiwadai Dorm Supervisor comes by for an inspection, Kuroko is forced to hide Tōma under Mikoto's bed due to his Imagine Breaker negating her teleportation. There, he finds the details concerning Project Level 6 Shift stuffed inside a teddy bear, learning that Misaka 10032's experiment is next. Tōma later finds Mikoto at the bridge and confronts her about the experiments. Mikoto feels convinced that letting

Tōma arrives at the site where Accelerator and Misaka 10032 are fighting and states his firm desire to rescue the Sister. As their fight begins, Tōma initially struggles against Accelerator as he launches projectiles at him and sets off a dust explosion. However, Accelerator is shocked when Tōma can punch him with his right hand without being affected by his ability, also coming as a surprise to Mikoto, who had also rushed to the scene. Angered, Accelerator starts using his ability to manipulate

Accelerator demands to know why Mikoto is protecting Misaka 10032, to which she responds that it is simply because she is her sister. Before Accelerator can attempt to kill them, Tōma manages to regain his footing and uses the remainder of his strength to knock Accelerator out with one final punch. As he loses consciousness, Accelerator realizes that the reason he wanted to become a Level 6 in the first place was so that he would not have to hurt anyone anymore. After the experiments are cancele

When asked by the Tokiwadai Dorm Supervisor to explain her absences, Mikoto bluffs that she was having study sessions with her friends. As Ruiko arranges a get-together so she can hear who Mikoto was making cookies for the other day, Kuroko comes across Minori again before being dragged along by Mitsuko Kongō to a pet shop. Meanwhile, Mikoto visits Heaven Canceller to hear about the status of the Sisters and learns that they are being reconfigured so they may live longer than their originally in

A mysterious organization oversees ITEM as they fight against a group of mechs. The next day, Mikoto and her friends visit Banri, who is due to be discharged from the hospital soon and will be moving into an apartment with Erii. As the gang discusses the move, Kuroko and Kazari reveal Judgement will be on duty for the upcoming Academy City Research Exhibition Assembly, where the city's top genius students will attend. Meanwhile, Mitsuko uses her power to stop a purse thief but gets berated by a

The girls are unable to find out any more information from Febri, who appears to be a bit cautious around Mikoto and takes a liking to Ruiko. After Febri spends a night with Ruiko at Kazari's apartment, the group, believing Febri to be a Child Error, makes arrangements for her to be moved to the orphanage in Asunaro Park in a week. As the gang heads to where the Academy City Research Exhibition Assembly will be held, Ruiko sets up some time for Mikoto to get along with Febri on their own. When F

As Aiho becomes curious over how the security bots functioned without any batteries, Mii treats Mikoto and the others by taking them to the public baths, where Mikoto lets Febri keep her rare pink Gekota finger puppet from her collection. Whilst heading home, the girls are led on a detour to a warehouse, where they are attacked by a mech. As Mikoto fights against the mech, which seems resilient to her electricity, the mech suddenly stops functioning when it comes close to attacking Febri, allowi

Heaven Canceller explains to Mikoto that Febri's body secretes a poison and requires her to suck special lollipops to neutralize it. Whilst keeping this a secret from the others, Mikoto runs into Misaka 10032 who, having visited Febri the previous night, informs her that Febri had been wanting to meet her big sister. She also reveals Febri gained her knowledge via the Testament, leading Mikoto to believe Shinobu is involved. After receiving a call from Mitsuko about the importance of trusting fr

Mikoto refuses to leave until she gets information from Therestina to save Febri. Therestina hesitantly reveals that Febri is an artificial human called a Chemicaloid, which her creators were going to showcase at the Academy City Research Exhibition Assembly. Mitsuko, Kinoho, and Maaya help Kazari identify the mysterious man as Haruki Aritomi, a longtime winner of the Academy City Research Exhibition Assembly. Kazari discovers that Aritomi and other student geniuses formed the STUDY Corporation

Aritomi reveals he started Project Chemicaloid, which created Janie and Febri due to his bitterness that espers gain fame and recognition while intellectuals like him are ignored. To finally show their power, STUDY found a way to mass-produce espers which will bring forth a revolution upon Academy City tomorrow. Later, Shinobu explains to Mikoto how she was sold to STUDY after being captured by ITEM and was forced to work on the Chemicaloids, which were born from her research, becoming determine

The entirety of Judgment joins in fighting off against STUDY's mechs. Meanwhile, Mikoto and Febri arrive at STUDY's hidden base at a stadium. STUDY responds by sending a signal to cut off everyone's communications and sending more advanced mechs after each group. However, they overcome this with Erii and Banri's network of telepaths, and Kazari and Ruiko piloting the mech that Mitsuko's father sent over, whilst ITEM destroys the mechs sent after Mikoto. Mikoto and Febri soon arrive underground,