Ajin: Demi-Human is a dark fantasy psychological thriller set in a modern world where a rare group of immortal beings known as Ajin suddenly appear among humans, triggering fear, discrimination, and violent government control, following Kei Nagai, a rational and detached student whose life is turned upside down after discovering he is one of these immortal entities, forcing him into a desperate struggle for survival while being hunted as a threat to society. As the story unfolds, it develops into an intense and morally complex narrative filled with high-stakes confrontations, strategic battles, and ideological conflicts between humans and Ajin, exploring themes of humanity, identity, fear, power, and the ethics of control, while showcasing brutal action sequences, psychological tension, and the mysterious manifestation of entities known as Black Ghosts. The series evolves into a gripping exploration of survival and morality in a world driven by fear and manipulation, establishing itself as one of the most unique and thought-provoking dark manga series, also known as Ajin manga, Ajin anime, Kei Nagai journey, immortal human series, and psychological action horror.

🏷️ Alternative Titles

Ajin Demi Human Manga

Ajin Anime

亜人 (Ajin)

Kei Nagai Story

Immortal Human Saga

Black Ghost Series