Toaru Majutsu no Index Wiki
Toaru Majutsu no Index Wiki

Gaouin Tsukasa (雅王院司 Gaōin Tsukasa?) is a student of Tokiwadai Middle School who appears in Toaru Kagaku no Mental Out. She is the Vice President of Tokiwadai's Student Council.[1]


She has shoulder length black hair, which she ties into two pigtails. Her eyes have concentric circles in them. Apart from the standard Tokiwadai uniform, she wears one glove on her left hand. She wears stockings or a pantyhose with her uniform.[1]


She's prideful and is easily willing to go toe-to-toe against Shokuhou Misaki herself. She's a stickler for efficiency and this is shown by her using a silver pocket watch to quickly criticize students asking for her help and feedback. The silver pocket watch itself is a sign of her influence as when she raises it means she is taking requests and she is immediately approached by her followers. She even proclaims that it is a sign of her bond with her followers.[1]

Due to how old-fashioned it looks, Misaki calls Tsukasa as someone who is a "chuuni", someone having middle-school syndrome, and that she lacks real confidence and uses props to hide behind.[1]


As the start of the story, Tsukasa begins her election campaign to become the next head of the Tokiwadai Student Council. She leads her own clique and uses to help her win. She plans to break up all the cliques in the school.[1]


Toaru Kagaku no Mental Out[]




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Tokiwadai Middle School
Misaka.png Shirai Kuroko Winter Clothing (Anime).png Kongou Mitsuko in Winter Clothing (Anime).png Shokuhou Misaki in Winter Clothing (Anime).png
Misaka Mikoto Shirai Kuroko Kongou Mitsuko Shokuhou Misaki
Awatsuki Maaya RailgunT (Anime).png Wannai Kinuho RailgunT (Anime).png Kirifu Megumi (Anime).png Kobayashi Satori (Anime).png
Awatsuki Maaya Wannai Kinuho Kirifu Megumi Kobayashi Satori
Hokaze Junko Winter Clothing (Anime).png Template Placeholder other.png Yumiya Iruka Color (Astral Buddy).png Makigami Komaki (Astral Buddy).png
Hokaze Junko Usukinu Yasumi Yumiya Iruka Makigami Komaki
Maybe Natsumi.png Sakibasu Yuri (Navbox).jpg Houjou Arei (Astral Buddy).png Kessai Kiyoshi.png
Natsumi Sakibasu Yuri Houjou Arei Kessai Kiyoshi
Shinenkouji Rurikakesu.png Sha Tanshan.png Mikagami Nagisa.png Hasekura Reiri.png
Shin'enkouji Rurikakesu Sha Danshan Mikagami Nagisa Hasekura Reiri
Kazan'in.png Template Placeholder other.png Template Placeholder other.png Enjou.png
Kazan'in Andou Inori Enjou
Gaouin Tsukasa.png Kakuzume.png Lily.png
Gaouin Tsukasa Kakuzume Lily
Ryoukan.png Watanabe (Anime).png
Tokiwadai Dorm Supervisor Watanabe