Kara no Kyōkai (空の境界, lit. Frontière du Néant), ou The Garden of Sinners, est une série de light novel de Kinoko Nasu et Takashi Takeuchi qui a été adaptée en une série de films d'animation entre 2007 et 2013 par le studio ufotable. Kara no Kyōkai est son titre, et The Garden of Sinners son sous-titre.

Mirai Fukuin is a side story of Kara no Kyoukai novel series. It includes two stories and three short manga chapters taking place after the events of the series. Möbius ring It's about two psychics, Seo Shizune and Kuramitsu Meruka, who can foresee the future. Shizune was sick of her predictable boring life and Meruka became a professional bomber taking advantage of his supernatural power. When Shizune met Mikiya and when Meruka met Shiki, their immutable future started to change. Möbius link Taking place ten years after the events of Kara no Kyoukai, Mana Ryougi, Shiki's daughter, spends the day with Kamekura Mitsuru. Manga shorts: 01_feline - Shiki takes care of a cat for Mikiya. 02_daylight - Fujino Asagami helps a friend of one of Kirie Fujou's victims get over her death. 03_say grace - Shiki asks Mikiya out on New Years.