Kei discovers the curse of immortality when he gets hit by a bus... and doesn't die. Now on the run from a government that wants to experiment on him, and his fellow Ajin, Kei's only hope to live a peaceful life lies in his ability to learn how to use his new powers. Aided by the strength of his "Black Ghost", a once apathetic Kei must now fight to avoid becoming a cruel demi-human experiment.

Mamoru Miyano
as Kei Nagai (voice)

Yoshimasa Hosoya
as Kaito (voice)

Aya Suzaki
as Eriko Nagai (voice)

Daisuke Hirakawa
as Kōji Tanaka (voice)

Hiroyuki Kinoshita
as Ikuya Ogura (voice)

Hochu Otsuka
as Satō (voice)

Mikako Komatsu
as Izumi Shimomura (voice)

Takahiro Sakurai
as Tosaki (voice)