A boy named Ichitarou Ushiro deals with various horrifying phenomena with the help of his guardian spirit Hyakutarou.
Unfortunately the movie Ushiro no Hyakutarou is not yet available on HBO Max.
| Writing | Jirō Tsunoda | Writer |
| Directing | Seitarou Hara | Director |
| Visual Effects | Jouji Kikuchi | Animation Director |
| Visual Effects | Eiji Uemura | Character Designer |
| Crew | Jirō Tsunoda | Creator |
| Sound | Hiro Tsunoda | Music |
