Ajin: Demi-Human (Japanese: 亜人, Hepburn: Ajin) is a Japanese manga series written and illustrated by Gamon Sakurai. It was serialized in Kodansha's seinen manga magazine Good! Afternoon from July 2012 to February 2021 and was collected into seventeen volumes. In North America, it has been licensed for English release by Vertical. It was adapted into a 3D anime film trilogy by Polygon Pictures between November 2015 and September 2016. An anime television series adaptation, also by Polygon Pictures, aired between January and April 2016, with a second season aired from October to December 2016. A live-action film adaptation was released in September 2017.
舞台は現代の日本。普通の高校生として生活していた永井圭は、ある日トラックに轢かれ一度は死亡してしまうが、生き返る。実は、圭は人ならざる存在・亜人であった。日本では極秘に亜人に対して、非人道的な実験を行っていた。圭は人間による苛烈な差別や、亜人コミュニティの過酷な洗礼をうけながらも、生きる術を探していく。
While running late to attend a party, Shinya Nakamura dies in a motorcycle accident, but revives and learned he is an Ajin.
OVA Hidden Inn / Secret Den - Four humorous short stories from the points of view of Sato and Tanaka (2 stories), Izumi and Tosaki (1 story), and Ko and Kei (1 story).
Taking place immediately after the prologue scene from Episode 1, Satou's background is explored.