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Takebayashi Yayoi (武林夜宵 Takebayashi Yayoi?) was a student of Tokiwadai Middle School who appears in Toaru Kagaku no Railgun. Four years prior to the main story, she was the head of Tokiwadai's biggest clique and top candidate for the Majesty title, as well as one of the adopted daughters of Takebayashi Family.[1]


Not much is known about her appearance, but she has waist length hair and wears the Tokiwadai Middle School uniform.[1]


Not much is known about her personality, but she was willing to mount an attack on Tanrei Chemicals to save her abducted clique members and was said to have been well-liked by the younger adoptees.[1]


At some point in the past, she was adopted by the Takebayashi Family alongside multiple others, to be sent to Academy City with the goal of at least one adoptee entering Tokiwadai and obtaining the school's Majesty title (and the alleged position on the Board of Directors it was supposed to promise). Takebayashi Yayoi was the only one to succeed in gaining admission to Tokiwadai.[1]

Tanrei Chemicals Incident

Depictions of the Tanrei Chemical incident.

Four year prior to the main story and three years prior to the arrival of Tokiwadai's Level 5s, she was the leader of the school's largest clique and having maintained that position over the course of a year, she was top candidate for the title of Majesty.[1] However, members of her clique were abducted. Having obtained information that they were being held captive at Tanrei Chemicals, Takebayashi attacked the company, resulting in her arrest, with two dead and the abducted girls being recovered elsewhere (with Hasekura Reiri and Shin'enkouji Rurikakesu later discussing the possibility of Tanrei bribing Anti-Skill or having an esper falsify or eliminate evidence).[1]

Death of Takebayashi Yayoi

Depiction of Takebayashi Yayoi's death, supposedly a suicide.

She lost her right to the Majesty title and was erased from Tokiwadai's records by the school's chair, who covered up the scandal, though her name wasn't publically revealed in association with the incident.[1] She supposedly committed suicide in prison afterwards.[1] Having heavily invested in her success, the Takebayashi family went bankrupt and the other adoptees were taken in by various branch families.[1]


First Year Arc[]

Main article: First Year Arc

Three years after the covered-up scandal, Hasekura Reiri, who had also sought the Majesty title, mentioned what she knew of the case to Shin'enkouji Rurikakesu who had considered a connection to the cases of shady companies connected to esper development that had been brought down over the past year, Tanrei Chemicals first among them.[1]


As a student of Tokiwadai Middle School, her ability can be presumed to have been at Level 3 or 4.



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Tokiwadai Middle School
Students (Current Year)
Misaka Shirai Kuroko Winter Clothing (Anime) Shokuhou Misaki in Winter Clothing (Anime) Hokaze Junko Winter Clothing (Anime) Kongou Mitsuko in Winter Clothing (Anime)
Misaka Mikoto[1] Shirai Kuroko Shokuhou Misaki[1] Hokaze Junko[1] Kongou Mitsuko
Awatsuki Maaya RailgunT (Anime) Wannai Kinuho RailgunT (Anime) Kirifu Megumi (Anime) Kobayashi Satori (Anime) Yumiya Iruka Color (Astral Buddy)
Awatsuki Maaya Wannai Kinuho Kirifu Megumi[1] Kobayashi Satori[1] Yumiya Iruka
Houjou Arei (Astral Buddy) Makigami Komaki (Astral Buddy) Maybe Natsumi Sakibasu Yuri (Navbox) Gaouin Tsukasa
Houjou Arei Makigami Komaki Natsumi Sakibasu Yuri Gaouin Tsukasa
Kamino Kokuchou Mayui Iori Mashiro Tatsuki Mirei Kumamori Tazuna
Kamino Kokuchou Mayui Iori Mashiro Tatsuki Mirei Kumamori Tazuna
Inubushi Glasses Judgment Girl - Commissioner (Mental Out) Mei (Anime) Kii (Anime) Resanerié Sadis Dialine
Inubushi Glasses Judgment Girl Mei Kii Resanerié Sadis Dialine[1]
Asato Kisa (Anime) Mibuki Kazan (Anime) Spy in Shokuhou Clique Otonari Hibiku
Asato Kisa[1] Mibuki Kazan[1] Nenohi Wakana Otonari Hibiku
AndouIkushimaInoriKinoshita HagoromoMatsuzai ShoukoSenbayashi KonomiTanaka MizuhoUmibe RyoukoUsukinu YasumiYonaki ReikaYamashiroYanagisakiin RondoYugure Kanaria
[1]: Student who is also present in Tokiwadai 1 year ago.
Students (1 Year Ago)
Kessai Kiyoshi (Navbox) Shinenkouji Rurikakesu Sha Tanshan Mikagami Nagisa Hasekura Reiri
Kessai Kiyoshi[C] Shin'enkouji Rurikakesu[G] Sha Danshan[C] Mikagami Nagisa[G] Hasekura Reiri[G]
Lily Ouyang Qian Lin Lihua Urui Aika Kazanin Tsukasa
Wu Lili Ouyang Qian Lin Lihua Urui Aika[G] Kazan'in Tsukasa[G]
Asakura Olivia Moa Kadosaka Rina Sukezawa Sena Enjou Kasumi Yasutoba Suika
Asakura Olivia Moa[G] Kadosaka Rina Sukezawa Sena Enjou Kasumi Yasutoba Suika[G]
Amano Ayane Unnamed Hasekura Clique Member 1 (Railgun Ch139) Unnamed Hasekura Clique Member 2 (Railgun Ch138) Unnamed Hasekura Clique Member 3 (Railgun Ch138) Ibotanokikouji Kaede
Amano Ayane[G] Satsuki Mahiru Soyogo Kato Asuwara Yui Ibotanokikouji Kaede[D][F]
For the unnamed clique members, see respective pages: Sha Clique, Mikagami Clique, and Hasekura Clique.
[C]: Student who is present in current year. / [D]: Deceased / [F]: Former student who haven't graduated but left school / [G]: Graduated
Students (2 Years Ago and Earlier)
Takebayashi Yayoi
Takebayashi Yayoi[D][F]
[D]: Deceased / [F]: Former student who haven't graduated but left school
Unabara (Mental Out Ch20, 6D+6F) Ryoukan Watanabe (Anime)
Director Unabara
Tokiwadai Dorm Supervisor Watanabe