The atmosphere in True Cross Academy is lively and boisterous in the days leading up to the grand festival held once every 11 years. During this time, Okumura Rin is entrusted with the responsibility of suppressing the berserk Phantom Train. In the midst of his mission, he meets a devil whose appearance is that of a young boy.
| Editing | Takeshi Seyama | Editor |
| Art | Shinji Kimura | Art Direction |
| Writing | Reiko Yoshida | Writer |
| Directing | Atsushi Takahashi | Director |
| Writing | Ryota Yamaguchi | Screenplay |
| Production | Arimasa Okada | Producer |
| Writing | Keigo Sasaki | Screenplay |
| Writing | Kazuki Katou | Novel |
| Sound | Hiroyuki Sawano | Original Music Composer |
| Production | Kozue Kaneniwa | Producer |
| Production | Hiroo Maruyama | Producer |
| Production | Tetsuhito Motoyasu | Producer |
| Production | Manabu Endou | Producer |
| Production | Makoto Furukawa | Producer |
| Production | Takamitsu Inoue | Producer |
| Production | Miho Ueda | Producer |
| Visual Effects | Takahiko Abiru | Key Animation |
