The Tunnel to Summer, the Exit of Goodbyes (2023) Spoiler-Free Summary – What It's About

In a rain‑slick world where ordinary moments blur into the uncanny, Kaoru Touno drifts through the quiet outskirts of his hometown, haunted by memories he can’t quite place. One stormy afternoon at a lonely train station, he encounters Anzu Hanashiro, a transfer student whose blank‑canvas demeanor masks a restless imagination. Their brief exchange, sparked by a shared umbrella, hints at a connection forged from yearning and the quiet ache of things left unsaid. Together they become drawn to the legend of the Urashima Tunnel, an enigmatic passage whispered to grant wishes at a steep, invisible price.

The tunnel itself is portrayed as a place where time bends and the ordinary laws of reality loosen, offering a fragile promise: the chance to reclaim what was lost. Its atmosphere is steeped in a melancholic magic, a blend of wistful nostalgia and subtle dread that makes every step feel both hopeful and precarious. Within its dim corridors, the simple act of entering becomes a rite of passage, compelling those who dare to confront the deepest corners of their hearts.

Both Kaoru and Anzu carry their own burdens—Kaoru with the weight of family tragedy and a longing to undo a painful past, and Anzu with the quiet desperation of a dream that feels out of reach. Their partnership blossoms through whispered confidences and a shared resolve to test the tunnel’s mysterious rules, each hoping that the price demanded might be worth the possibility of a fulfilled desire.

The film shrouds these characters in a tone that balances tender coming‑of‑age introspection with an ethereal, almost folkloric suspense. It invites the audience to wonder whether the promise of the tunnel is a salvation, a temptation, or something far more haunting, leaving the true cost of their wishes lingering just out of sight.