The Tunnel to Summer, the Exit of Goodbyes

Synopsis

There is an urban legend about the Urashima Tunnel: it is said that if you enter it, you can get anything your heart desires, but at the cost of your own life's time. Kaoru Touno, a high school student haunted by a tragic accident that killed his younger sister, stumbles upon the tunnel one night. He discovers that a few seconds inside the tunnel equate to hours in the outside world. He is joined by Anzu Hanashiro, a transfer student who harbors her own deep-seated wish. The two form a pact to investigate the tunnel together, leading to a bittersweet exploration of grief, the relentless flow of time, and a love that must withstand a gap of several years.