Toaru Majutsu no Index Wiki

Kazan'in Tsukasa (花山院つかさ Kazanin Tsukasa?) is a student of Tokiwadai Middle School who appears in Toaru Kagaku no Railgun. She was a member of the Mikagami Clique, one year before the main story.[1][2]


Kazan'in has light colored waist-length hair. She wears the Tokiwadai Middle School uniform.[1]


As a classist, she is easily provoked by and looks down on anyone who is of a lower status.[1] She is proud, and Hasekura noted that her pride meant she would be unlikely to lie about a commoner getting the better of her.[3]


She's a classist who has a disdain for Tokiwadai's admittance of plebeians.[2][1]


Toaru Kagaku no Railgun[]

First Year Arc[]

Main article: First Year Arc

At 8AM one summer day, Kazan'in intentionally disdained Enjou and her family for being low status. Enjou used her esper ability to threaten her, but both of their friends stopped the conflict between them. At the same day 4:20PM, Kazan'in was attacked by someone's power while leaving school. Later, she claimed it was Enjou's ribbon control power.[1]

Kazan'in was present when Mikagami announced to her clique the temporary truce with Hasekura in light of a possible external culprit. Although she and others raised objections, Mikagami's words, and her promise to use her ability for each member if the culprit being caught, ultimately quietened them down.[4]

When the Mikagami and Sha cliques reinforced the Hasekura clique in a raid on the headquarters of Montgolfier, the culprit behind the attacks that instigated and aggravated the clique conflict, Kazan'in was involved in the resulting battle with Montgolfier's operatives and their prototype weapons.[5] During the raid, Mibuki saved her from a sudden flame attack by Attachment Dark Matter.[6]

Remaining Tensions (Railgun Ch144)

Kazan'in belittling Enjou again, as tensions remain between the Hasekura and Mikagami cliques during the theatre visit.

During her art appreciation elective in October, Kazan'in visited a theatre in School District 9 with a group of Tokiwadai students including members of the Mikagami and Hasekura cliques. Before the performance, Kazan'in belittled Enjou again, with Asato Kisa standing in front of Enjou and trading verbal blows with her.[7] Following the performance, she and Asato were at the head of the departing Tokiwadai crowd as they learned that a fire had broken out backstage.[7] After Shokuhou had taken care of the other panicking guests and prompted the Tokiwadai students into action, Kazan'in did her part in their collective efforts to ensure people were safe from the fire.[8]

Kazanin Graduation

Kazan'in during her graduation.

Kazan'in graduated Tokiwadai at the start of the school's current year, alongside her friend and Mikagami. During the graduation ceremony, Enjou had a final word with her, their mutual friends in attendance.[9]


Kazan'in's ability - Railgun Ch133

Kazan'in gathering air in her hand.

She is a Level 4 esper who can use compressed air to cut, grind, and bind targets. Her ability's raw power is average, but thanks to the extreme precision, she is famous for being one of the best sculptors in the Academy City.[2]


  • In the magazine release of Chapter 133, her hair had darker shades. It was changed in Volume 17, with subsequent chapters released after the volume following suit.[1][2]



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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
v  e
Mikagami Nagisa's Clique
Mikagami Nagisa
Mikagami Nagisa
Urui Aika Kazanin Tsukasa Asakura Olivia Moa
Urui Aika Kazan'in Tsukasa Asakura Olivia Moa
Kadosaka Rina Sukezawa Sena Unnamed Mikagami Clique Member 1 (Railgun Ch138)
Kadosaka Rina Sukezawa Sena ???
Unnamed Mikagami Clique Member 2 (Railgun Ch138) Unnamed Mikagami Clique Member 3 (Railgun Ch138) Unnamed Mikagami Clique Member 4 (Railgun Ch138)
??? ??? ???
Unnamed Mikagami Clique Member 5 (Railgun Ch133) Unnamed Mikagami Clique Member 6 (Railgun Ch133) Unnamed Mikagami Clique Member (Railgun Ch133)
??? ??? ???
Unnamed Mikagami Clique Member 7 (Railgun Ch138)