Index Librorum Prohibitorum (禁書目録, Kinsho Mokuroku, lit. "List of Prohibited Books"), commonly known simply as Index, is the titular character of the light novel series A Certain Magical Index, written by Kazuma Kamachi, illustrated by Kiyotaka Haimura, and adapted into anime by the studio J.C. Staff. She is one of the main heroines in the Toaru series as a whole.

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Whenever Index looks out of the window on a rainy day, she will forever remember each and every raindrop she sees.

The gift of perfect memorization defined her entire life under the care of the Church of England. Index willingly became the container of 103,000 grimoires, accepting the combined weight of all the forbidden arts her Church had faced in its history. Her sacrifice notwithstanding, she inevitably became the most dangerous person for her own patrons. Constantly fearing betrayal or having its secrets exposed, the Church of England kept a close watch on Index and controlled all her movements. It was also decided that her personal memories were to be regularly erased.''

Index led the life of a vagabond, unaware of her own situation and importance. Under constant supervision, she journeyed and met new people, only to have her memories of them snatched away from her and her entire life reset every year. Her nearly boundless knowledge of magic does not translate to everyday life know-how – she constantly has to rediscover all the experiences she is robbed of, which sometimes leads to troublesome misunderstandings.

Despite this, Index retains her bright, if slightly childish, personality. For a nun, she is not particularly resistant to temptation, especially when it comes to food. Another quality of hers that remains unchanged is her willingness to help and protect others, even at her own cost.

Index is a wonderful friend to have. However, all her relationships are forever destined to crumble into dust. Unless...

- Written by ?????

Contest History

International Saimoe League


  • Regular season icon.png 48th (16-0-0-47)


  • Regular season icon.png 32th (18-0-31)


  • Regular season icon.png 30th (7-0-28)

Defunct Tournaments

Anime Saimoe Tournament

AST 2009

AST 2010

AST 2011

AST 2014

Korea Best Moe Tournament

KBM 2009

KBM 2010

KBM 2011



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