Season 1 (including episodes 1–6) is available for streaming on (source 0.5.15). Source Material: The anime adapts the manga by Gamon Sakurai
Flashback episode. We learn how Sato became an Ajin. His backstory is chilling: he was a soldier who discovered his immortality in Vietnam. Now, he sees killing as a game. This episode recontextualizes the entire series – Sato is the most dangerous villain in modern anime. S1 Ajin Demi Human 1-6.zip