Kenichi Kokuho became lost in the mountains as a small child. A foster father raised Kenichi; when Kenichi was 15 the foster father told Kenichi about his background and the teenager returned to the civilized world at age 15.
Is Moeru! Onii-san on Netflix? Unfortunately this serie is not yet available on Netflix.
| Sound | Koji Makaino | Music |
| Visual Effects | Michishiro Yamada | Character Designer |
| Writing | Tadashi Satou | Writer |
| Directing | Yoshimitsu Ohashi | Director |
| Writing | Kenji Terada | Screenplay |