Natsu E No Tunnel- Sayonara No Deguchi Link

Two students team up to investigate the 'Urashima Tunnel,' a place rumored to grant your heart's desire in exchange for years of your life. Why Watch: Beautifully paced at 90 minutes (no filler!). Incredible animation quality. Relatable characters dealing with real loss.

In the final moments of the film, Kaoru emerges from the tunnel. Because he went so deep to confront Karen, the Urashima Effect is severe. He has only been inside for what felt like an hour, but outside,

Don’t go into The Tunnel to Summer, the Exit of Goodbyes expecting a high-energy adventure. It is slow, contemplative, and occasionally brutal. But if you have ever lost someone, if you have ever wished for a do-over, or if you just need a good cry wrapped in stunning animation—this is your movie. Natsu e no Tunnel- Sayonara no Deguchi

When the enigmatic and isolated Anzu Hanashiro—an artist carrying her own deep scars—discovers Kaoru’s obsession with the tunnel, they strike a dangerous bargain. Together, they will explore the tunnel to reclaim what they’ve lost. But as they venture deeper, the film asks us: Are some doors meant to stay closed?

Kaoru Tono: The Prisoner of the Past Kaoru is a protagonist defined by guilt. His motivation stems from a belief that he was responsible for his sister's death. The tunnel is not just a magical portal to him; it is a duty. He is willing to sacrifice his future—literally—to rewrite the past. His arc is a powerful depiction of survivor's guilt. He is unable to move forward because he feels he does not deserve a future without his sister. His journey is one of realizing that "saving" the dead requires killing the living—that is, sacrificing his own life in the present. Two students team up to investigate the 'Urashima

Anzu, conversely, is a high-achieving, stoic girl who dreams of becoming a manga artist. She is trapped by her own ambition and the fear of being forgotten. When she discovers Kaoru’s obsession with the tunnel, she proposes a deal: a field experiment. Together, they will use the tunnel to gather data on the Urashima Effect. In reality, they are two people using science to mask their desperate desire to disappear.

is a haunting meditation on the Japanese concept of Mono no Aware (the bittersweet awareness of impermanence). Director Tomohisa Taguchi uses the sci-fi trope of time dilation to ask a very human question: What are you willing to sacrifice to avoid saying goodbye? Relatable characters dealing with real loss

“If you could see the person you lost for just five minutes, but it cost you five years of your future… would you do it?”

The title, *The Tunnel to Summer, the Exit of Goodby

Based on the award-winning novel by Mei Hachimoku, this 2022 anime movie is not just a summer ghost story or a sci-fi romance. It’s a raw, visual poem about grief, guilt, and the impossible cost of running away from pain.