Ajin: Demi-Human

An immortal teen becomes humanity’s most hunted weapon in a blood‑soaked fight for survival.

When Kei Nagai, a diligent high‑schooler with aspirations of medicine, is suddenly crushed in a traffic accident, he awakens unharmed—only to discover he’s become an Ajin, a so‑called “immortal” outcast hunted by the state. The government treats Ajins as weapons, imprisoning them for research or execution, while the public views them as monsters. Kei’s naive belief that the world’s warnings are just propaganda shatters as he learns the brutal reality: Ajins can resurrect after death, generate lethal black‑blood entities called "Black Ghosts," and are relentlessly pursued by a covert task force. Forced onto the run, Kei encounters other Ajins—some seeking freedom, others embracing chaos. Among them is the enigmatic Sato, a charismatic rebel who manipulates both humans and Ajins to ignite a war that could upend society’s fragile order. As Kei grapples with his newfound powers, he must decide whether to hide in the shadows or become a catalyst for a larger conflict. The series spirals through high‑octane chase sequences, moral quandaries, and visceral gore, painting a bleak portrait of a world where humanity’s fear of the unknown fuels a relentless cycle of violence.

Ajin follows a teenager who discovers he's an immortal being hunted by the government for brutal experimentation. Expect relentless graphic violence enabled by regeneration mechanics, making torture sequences prolonged and visceral, alongside mature themes of dehumanization and ethical compromise.