A teaser trailer dropped alongside the announcement on May 10, 2026. The announcement adds another high-profile literary adaptation to Kyoto Animation’s post-2019 production slate, following works like Violet Evergarden: The Movie (2020) and the TV series CITY The Animation (2025).

Shochiku will distribute the film in Japan; an international distributor or streamer has not been named. The teaser, however, features the ‘2027 Roadshow’ tagline.

AloJapan.com