Two best friends living in a rural Japanese village: Yoshiki and Hikaru. Growing up together, they were inseparable... until the day Hikaru came back from the mountains, and was no longer himself. “Something” has taken over Hikaru’s body, memories, feelings... and everything they know begins to unravel.
| Directing | Ryohei Takeshita | Series Director |
| Writing | Ryohei Takeshita | Series Composition |
| Writing | Mokumokuren | Comic Book |
| Visual Effects | Yuichi Takahashi | Supervising Animation Director |
| Sound | TOOBOE | Theme Song Performance |
| Sound | Taro Umebayashi | Original Music Composer |
| Editing | Kashiko Kimura | Editor |
| Camera | Tomohiro Maeda | Director of Photography |
| Visual Effects | Yoshinori Nakano | 3D Director |
| Visual Effects | Naomi Nakano | Color Designer |
| Art | Kohei Honda | Art Direction |
| Art | Ryunosuke Oji | Prop Designer |
| Visual Effects | Yuichi Takahashi | Lead Character Designer |
| Visual Effects | Masanobu Hiraoka | Lead Animator |
| Visual Effects | Mai Watanabe | Character Designer |
| Visual Effects | Hiroko Seigan | Character Designer |
| Visual Effects | Shoko Nagasawa | Character Designer |
| Art | Shuhei Tada | Art Designer |
| Art | Takeshi Takahashi | Art Designer |
| Art | Yoshihiro Sono | Art Designer |
| Editing | Yuuko Koshida | Color Assistant |
| Visual Effects | Yusuke Nagara | 2D Artist |
| Visual Effects | Yuri Tsue | 2D Artist |
| Sound | Koji Kasamatsu | Sound Director |
| Writing | TOOBOE | Lyricist |
| Sound | TOOBOE | Music Arranger |
