Release date: Summer, 2025 on Netflix.

Synopsis: Two best friends, Yoshiki and Hikaru, live in a rural Japanese village. They are inseparable — until the day Hikaru returns from the mountains, no longer himself. Something has taken over Hikaru’s body, memories, and feelings, and everything they know begins to unravel.

Crew:
Directed by Ryohei Takeshita.
Based on the manga by Mokumokuren.
Character design by Yuichi Takahashi.
Music by Taro Umebayashi.
Ending theme song: “Anata wa Kaibutsu (you are my monster)” by TOOBOE.
Animation production by CygamesPictures.

Voice cast:
Chiaki Kobayashi as Yoshiki Tsujinaka
Shuichiro Umeda as Hikaru Indou
Yumiri Hanamori as Asako Yamagishi
Wakana Kowaka as Rie Kurebayashi
Chikahiro Kobayashi as Tanaka