A Dark Rabbit Has Seven Lives

"A Dark Rabbit Has Seven Lives" (Japanese: いつか天魔の黒ウサギ, Itsuka Tenma no Kuro Usagi), also known as "The Devil's Black Rabbit of an Unknown Time," is a Japanese light novel series written by Takaya Kagami and illustrated by Yū Kamiya. The story revolves around Taito Kurogane, a high school student who gains conditional immortality due to a promise he made with the vampire (Most Ancient Sorcerer) Saitohimea nine years prior. He can only die seven times within fifteen minutes. His ordinary life changes after an accident, and he begins to remember his past with Saitohimea and is reunited with her. Taito, along with Saitohimea, student council president Gekkou Kurenai, and his familiar Mirai Andou, fight against Hinata Kurenai and get involved in a conspiracy about an ancient prophecy. The series consists of 13 light novels, a manga adaptation, and a 12-episode anime adaptation produced by ZEXCS Inc. that aired from July to September 2011. It blends action, comedy, fantasy, romance, and vampire elements.