First air date: Apr 12, 2021
Episode duration: 00h 25m
Rating: (8.202) based on 262 votes
Status: In production Seasons: 3
Episodes: 40
Starring: Reiji Kawashima, Kenjiro Tsuda, Eri Inagawa, Kazuyuki Okitsu, Rie Hikisaka
Genre: Animation,
Action & Adventure,
Sci-Fi & Fantasy Trailer
An immortal being takes on the form of a human boy, wandering the earth and experiencing the pains and joys of life throughout his story without end.