Itsuka Tenma no Kuro Usagi

A Dark Rabbit Has Seven Lives
Cover of the first light novel
いつか天魔の黒ウサギ
Genre	Fantasy, Romance, Supernatural
Light novel
Written by	Takaya Kagami
Illustrated by	Yū Kamiya
Published by	Fujimi Shobo
Demographic	Male
Imprint	Fujimi Fantasia Bunko
Magazine	Dragon Magazine
Original run	November 25, 2008 – December 25, 2013
Volumes	13
Light novel
Itsuka Tenma no Kuro Usagi Kurenai Gekkou no Seitokaishitsu
Written by	Takaya Kagami
Illustrated by	Yū Kamiya
Published by	Fujimi Shobo
Demographic	Male
Imprint	Fujimi Fantasia Bunko
Magazine	Dragon Magazine
Original run	February 20, 2010 – present
Volumes	5
Manga
Written by	Takaya Kagami
Illustrated by	Shiori Asahina
Published by	Fujimi Shobo
Demographic	Shōnen
Magazine	Monthly Dragon Age
Original run	October 9, 2009 – present
Volumes	5
Manga
Itsuka Tenma no Kuro Usagi Kōkō hen Kurenai Gekkou no Seitokaishitsu
Written by	Takaya Kagami
Illustrated by	Shushi Imada
Published by	Kadokawa Shoten
Demographic	Shōnen
Magazine	Monthly Shonen Ace
Original run	February 26, 2011 – November 26, 2012
Volumes	2
Manga
Itsuka Tenma no Dai Usagi
Written by	Takaya Kagami
Illustrated by	Takeshi Tani
Published by	Fujimi Shobo
Demographic	Shōnen
Magazine	Monthly Dragon Age
Original run	February 9, 2011 – September 9, 2011
Volumes	1
Manga
Itsuka Tenma o Kiru Majo
Written by	Takaya Kagami
Illustrated by	Pochi Edoya
Published by	Kadokawa Shoten
Demographic	Shōnen
Magazine	Comp Ace
Original run	July 26, 2011 – present
Volumes	2
Anime television series
Directed by	Takashi Yamamoto
Written by	Shigeru Morita Keiichiro Ochi Masaharu Amiya Kiyoko Yoshimura
Studio	Zexcs
Original network	TVS, UHF stations
Original run	July 8, 2011 – September 24, 2011
Episodes	12 + 1 OVA

A Dark Rabbit Has Seven Lives (いつか天魔の黒ウサギ, Itsuka Tenma no Kuro Usagi^?, lit. The Devil's Black Rabbit of an Unknown Time) is a Japanese light novel series by Takaya Kagami, with illustrations by Japanese-Brazilian illustrator Yū Kamiya. The series includes 13 novels published by Fujimi Shobo between November 2008 and December 2013. The series also has a spin-off series, Kurenai Gekkō no Seitokaishitsu (紅月光の生徒会室, Gekkō Kurenai's Student Council Room^?), which has five volumes since February 2010. A manga adaptation by Shiori Asahina started serialization in the shōnen manga magazine Monthly Dragon Age on October 9, 2009. A 12-episode anime adaptation aired between July and September 2011.

Kurogane Taito is a freshman in Miyasaka High. Ever since an injury to his leg (a snapped tendon) that prevented him from practicing karate, which he had excelled in since elementary school, he has always believed that he was an ordinary, regular guy. However, due to a promise exchanged with a beautiful Vampire (Most Ancient Sorcerer) Saitohimea nine years ago which he has forgotten about, he is in fact no longer ordinary. Nine years ago, Saitohimea injected him with a poison, which prevents him from dying as long as he doesn't die seven times within fifteen minutes. Shortly after his change, a boy named Kurenai Hinata attacked them with a demon and killed Taito six times in rapid succession. In order to prevent him from killing Taito outright, Saitohimea agreed to leave with Hinata and allow Taito's memory to be wiped. Subsequent to this, Saitohimea was experimented on and imprisoned in a dimension with no sound or light whatsoever, and Taito continued with his life as a normal human.