The Tunnel to Summer, the Exit of Goodbyes

Kaoru Tono is a withdrawn high schooler carrying the loss of his younger sister, Karen, who died in an accident years earlier. He has heard the rumours about the Urashima Tunnel: whoever walks it to the far end can have their deepest wish granted, though the tunnel takes years off the life of the person who does. One night Kaoru finds himself at the tunnel's mouth, and discovers he is not alone. Anzu Hanashiro, a student who has recently transferred to his school, has followed him there and offers to help him test what the tunnel can do. She keeps her own reasons to herself, leaving Kaoru unsure what she expects from him in return.

The film is an animated adaptation directed and written by Tomohisa Taguchi, released in 2022. It followed his work on the Persona 3 film series and Digimon Adventure: Last Evolution Kizuna, and came before Digimon Adventure 02: The Beginning and Bleach: Thousand-Year Blood War - The Calamity. The voice cast is led by Ouji Suzuka as Kaoru and Marie Iitoyo as Anzu, with Tasuku Hatanaka, Arisa Komiya, Haruka Terui and Rikiya Koyama among the supporting roles. It runs 83 minutes.

Audience response has been favourable: on IMDb it holds 7.2/10 from roughly 6,600 votes, and on TMDB 7.7/10 from around 300 votes, indicating a smaller but warmer body of viewers on the latter. The modest vote counts point to a film with a devoted niche following rather than broad mainstream attention.