Yotsuba (四葉?) is a minor character in Toaru Majutsu no Index, mentioned in Volume 1. She is a level 4 esper and member of Judgment.


Toaru Majutsu no IndexEdit

Index ArcEdit

Main article: Index Arc

When Kamijou Touma hurriedly calls Tsukuyomi Komoe to ask her about "Mind Hound-related matters" (memory manipulation), Komoe recommends calling in a guest esper who specializes in that field. Komoe then points out Yotsuba, who she describes as a Level 4 esper of the Telepath category that is also a member of Judgment.[1]


  • Her name was mentioned in Volume 1, there's been a fan fascination regarding her true identity. The most popular fan theory has Yotsuba be the character that Touma, Index, and Kazakiri Hyouka meet on September 1 during Sherry Cromwell's attack,[2][3] as she was a telepath esper and a member of Judgment as well, but it is unconfirmed.
  • Another theory has Yotsuba be the Judgment member in the Toaru Kagaku no Railgun manga that mistakes Misaka Mikoto for a fellow member.



Kuroko Shirai Uiharu Kazari Konori Yanagisako Aomi
Shirai Kuroko Uiharu Kazari Konori Mii Yanagisako Aomi
Template Placeholder other Kihara Nayuta Makigami Komaki (Astral Buddy) Judgment Boy (Railgun Anime)
Yotsuba Kihara Nayuta Makigami Komaki Judgment Boy
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