Urashima Tunnel – Once you enter that tunnel, you can get whatever you want, but at a price. Kaoru Tohno, who seems to have an elusive personality and traumatic past, and Anzu Hanashiro, who is struggling to reconcile her ideal image and true-to-heart attitude, team up to investigate the Urashima Tunnel and get what they want. This is an unforgettable summer story of nostalgia and sprinting in a remote countryside.
| Actor | Role |
|---|---|
 Ouji SuzukaKaoru Tono (voice) | Kaoru Tono (voice) |
 Marie IitoyoAnzu Hanashiro (voice) | Anzu Hanashiro (voice) |
 Tasuku HatanakaShohei Kaga (voice) | Shohei Kaga (voice) |
 Arisa KomiyaKoharu Kawasaki (voice) | Koharu Kawasaki (voice) |
 Haruka TeruiMs. Hamamoto (voice) | Ms. Hamamoto (voice) |
 Rikiya KoyamaKaoru's Father (voice) | Kaoru's Father (voice) |
 Seiran KobayashiKaren Tono (voice) | Karen Tono (voice) |
 Chiko Mizumori(voice) | (voice) |
 Hiroto Kazuki(voice) | (voice) |
| TTaiki Kurokawa(voice) | (voice) |
 Kaori Maeda(voice) | (voice) |
 Kazuki Miyagi(voice) | (voice) |
 Kikunosuke Toya(voice) | (voice) |
 Kumiko Nakane(voice) | (voice) |
 Mai Kanazawa(voice) | (voice) |
 Misono Suzuki(voice) | (voice) |
 Miyu Tomita(voice) | (voice) |
 Ryosuke Shukutani(voice) | (voice) |
 Saima Nakano(voice) | (voice) |
 Sayaka Ohara(voice) | (voice) |
 Yuuki Shin(voice) | (voice) |