Ajin: Demi-Human (Japanese: 亜人 Hepburn: Ajin) is a seinen manga written and illustrated by Gamon Sakurai. It will be adapted into three anime films.
The story is about a student named Kei Nagai, who discovers he is an immortal "Ajin" when he is hit by a truck. He becomes a wanted person because the Ajins are considered criminals and the only person who is there to support him is his best friend, Kaito. 
 

Ajin: Demi-Human