Toaru Majutsu no Index Wiki

Mikagami Nagisa (水鏡 凪紗?) is a student of Tokiwadai Middle School who appears in Toaru Kagaku no Railgun.[1] She was the leader of one of Tokiwadai's three great cliques; one year before the main story.


Mikagami has freckles, green eyes and blonde hair, tied into a shoulder length braided ponytail with a blue ribbon. She wears the Tokiwadai Middle School uniform.[1][2] She also wears a flexible sports bra and bike shorts under her uniform, which can withstand a drastic expansion of her body from her ability that would damage or destroy her uniform.[3][4]


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In her years before middle school, Mikagami was continually approached by people who sought help from her ability, to the extent that most of her free time was taken up by it.[7] In an effort to change this, when she entered Tokiwadai, she formed a clique and made it a rule that she would only use her ability for others as a reward, in an effort to minimize people approaching her.[7] However, she underestimated how many people cared about their appearance and were willing to join, as well as the effort they would put in to get results, to the extent that the Mikagami Clique overtook the Hasekura Clique to briefly become Tokiwadai's number one clique before being overtaken by the Sha Clique.[7]

At some point in the past, Kadosaka Rina and Sukezawa Sena did Mikagami's hair up in her current ribbon.[3]

At the start of Misaka Mikoto and Shokuhou Misaki's first year at Tokiwadai Middle School, Mikagami was in her third year and leader of one of Tokiwadai's 'big three' cliques.[1] The Mikagami Clique was apparently made up of students who were mostly drawn to her oil control ability and sought her to fulfill their own desires (such as manipulating fat in their body to enhance their bust or slim them down), with Mikagami only doing this for those who contributed the most to her clique. The clique was in second place and of the three, was said to be working the hardest to get results.[1]


Mikagami blocking an attack by inflating her belly with fat.

Mikagami's esper ability is Oil Direction (油性操作オイルディレクション Yusei Sousa (Oiru Direkushon)?, lit. Oil Control),[1] which allows her to manipulate a target's oil content. This includes the manipulation of fat within a human body (e.g. for purposes such as bust enhancement or slimming), which she does for those who have contributed the most to her clique.[1] As a student of Tokiwadai Middle School, it can be presumed to be at Level 3 or 4.

Mikagami is capable of fattening and slimming her body immediately,[3][4] the former being used to resist attacks and increase the weight of her own attacks,[3][4] and the latter being used for speed and mobility or to slip out of bindings when ensnared in her fat form.[4]



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Tokiwadai Middle School
Students (Current Year)
Misaka.png Shirai Kuroko Winter Clothing (Anime).png Shokuhou Misaki in Winter Clothing (Anime).png Hokaze Junko Winter Clothing (Anime).png Kongou Mitsuko in Winter Clothing (Anime).png
Misaka Mikoto[1] Shirai Kuroko Shokuhou Misaki[1] Hokaze Junko[1] Kongou Mitsuko
Awatsuki Maaya RailgunT (Anime).png Wannai Kinuho RailgunT (Anime).png Kirifu Megumi (Anime).png Kobayashi Satori (Anime).png Yumiya Iruka Color (Astral Buddy).png
Awatsuki Maaya Wannai Kinuho Kirifu Megumi[1] Kobayashi Satori Yumiya Iruka
Houjou Arei (Astral Buddy).png Makigami Komaki (Astral Buddy).png Maybe Natsumi.png Sakibasu Yuri (Navbox).jpg Gaouin Tsukasa.png
Houjou Arei Makigami Komaki Natsumi Sakibasu Yuri Gaouin Tsukasa
Kamino.png Kokuchou Mayui.png Iori Mashiro.png Tatsuki Mirei.png Kumamori Tazuna.png
Kamino Kokuchou Mayui Iori Mashiro Tatsuki Mirei Kumamori Tazuna
Inubushi.png Glasses Judgment Girl - Commissioner (Mental Out).png Mei (Anime).png Kii (Anime).png Resanerié Sadis Dialine.png
Inubushi Glasses Judgment Girl Mei Kii Resanerié Sadis Dialine
Asato Kisa (Anime).png Long hair with glasses (Shokuhou's Clique, Anime).png Spy in Shokuhou Clique.png
Asato Kisa[1] Glasses Clique Girl[1] Clique Spy
AndouIkushimaInoriSenbayashi KonomiTanaka MizuhoUmibe RyoukoUsukinu YasumiYonaki ReikaYamashiroYugure Kanaria
[1]: Student who is also present in Tokiwadai 1 year ago.
Students (1 Year Ago)
Kessai Kiyoshi.png Shinenkouji Rurikakesu.png Sha Tanshan.png Mikagami Nagisa.png Hasekura Reiri.png
Kessai Kiyoshi Shin'enkouji Rurikakesu Sha Danshan Mikagami Nagisa Hasekura Reiri
Lily.png Ouyang Qian.png Lin Lihua.png Urui Aika.png Kazanin Tsukasa.png
Lily Ouyang Qian Lin Lihua Urui Aika Kazan'in Tsukasa
Asakura Olivia Moa.png Kadosaka Rina.png Sukezawa Sena.png Enjou Kasumi.png Yasutoba Suika.png
Asakura Olivia Moa Kadosaka Rina Sukezawa Sena Enjou Kasumi Yasutoba Suika
Amano Ayane.png
Amano Ayane
Ryoukan.png Watanabe (Anime).png
Tokiwadai Dorm Supervisor Watanabe
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Mikagami Nagisa's Clique
Mikagami Nagisa.png
Mikagami Nagisa
Urui Aika.png Kazanin Tsukasa.png Asakura Olivia Moa.png
Urui Aika Kazan'in Tsukasa Asakura Olivia Moa
Kadosaka Rina.png Sukezawa Sena.png
Kadosaka Rina Sukezawa Sena