The Tunnel to Summer, the Exit of Goodbyes (Natsu e no Tunnel, Sayonara no Deguchi) is a visually stunning, bittersweet coming-of-age story that uses a supernatural hook to explore very human themes of grief and first love. The Story & Premise
The film follows Kaoru Tono, an introverted high schooler grieving the loss of his sister, and Anzu Hanashiro, a determined transfer student aspiring to be a manga artist. Together, they investigate the "Urashima Tunnel," a local legend said to grant any wish in exchange for years of your life. Visuals & Art: Reviewers from The Guardian Asian Movie Pulse
praise the film’s "mesmerizing" aesthetic. The contrast between the grounded, realistic rural settings and the otherworldly, color-drenched interior of the tunnel is a standout highlight.
It handles heavy topics like family trauma and the cost of clinging to the past with a gentle, melancholic touch. The central message focuses on learning to cherish the present rather than sacrificing it for what was lost. The Verdict Natsu e no tunnel, Sayonara no deguchi (2022) - IMDb
The 2022 anime film Natsu e no Tunnel, Sayonara no Deguchi (translated as The Tunnel to Summer, the Exit of Goodbyes) is a poignant coming-of-age story that blends supernatural mystery with deep emotional stakes. Directed by Tomohisa Taguchi, the movie explores the lengths individuals will go to reclaim what they've lost and the steep price of dwelling on the past. Plot Summary: The Legend of Urashima Tunnel
The story follows Kaoru Touno, a high school student in a rural town whose family has been fractured by the tragic death of his younger sister, Karen. One evening, Kaoru discovers the Urashima Tunnel, an urban legend said to grant its visitor’s deepest desire. However, the tunnel operates outside normal space-time: just 108 seconds spent inside equates to three days passing in the outside world.
Kaoru soon encounters Anzu Hanashiro, a transfer student from Tokyo who has also discovered the tunnel. While Kaoru wishes to bring his sister back, Anzu seeks a "special" talent to succeed as a manga artist. The two form an alliance to experiment with the tunnel's rules, ultimately bonding over their shared sense of isolation and their dangerous pursuit of a "miracle". Thematic Depth and Visuals The Tunnel to Summer, the Exit of Goodbyes (2022) - IMDb
Natsu e no Tunnel, Sayonara no Deguchi (English: The Tunnel to Summer, the Exit of Goodbyes) is a poignant sci-fi romance centered on the mythical Urashima Tunnel, which is said to grant a person's deepest wish—at the cost of their own time. 🌌 Core Plot & Concept
The story follows Kaoru Tono, a reclusive student grieving the death of his younger sister, Karen, and Anzu Hanashiro, a talented transfer student who wants to make her mark as a manga artist.
The Urashima Tunnel: Time inside the tunnel moves much slower than outside; seconds inside can translate to hours or even days in the real world. natsu e no tunnel sayonara no deguchi full
The Pact: Kaoru and Anzu team up to investigate the tunnel, hoping to retrieve what they’ve lost or gain what they lack. 🎬 The Ending Explained
The climax occurs when Kaoru enters the tunnel alone, seeking to bring his sister back.
The Illusion: Inside, he finds a conjured reality where Karen is still alive. However, he begins receiving years of delayed text messages from Anzu, which makes him realize his true desire is to be with her in the present.
The Reunion: Kaoru abandons the illusion and runs back toward the exit. Meanwhile, 8 years have passed for Anzu, who has become a manga artist but never forgot him.
The Time Skip: When they finally reunite and leave the tunnel together, a total of 13 years and 102 days have passed since Kaoru first entered.
Current Status: In the movie ending, they reunite as adults (Anzu is physically older due to the time skip) and decide to move forward with their lives together. 📖 Key Differences (Light Novel vs. Movie)
The original light novel by Mei Hachimoku provides additional depth that the movie condensed:
"The tunnel doesn't take your time. It takes your impatience. And what's left is the courage to wait for someone on the other side."
Would you like a scene-by-scene breakdown of the full movie, or the differences between the novel and the film? Let me know. The Tunnel to Summer, the Exit of Goodbyes
Here’s a structured, insightful report on the anime film Natsu e no Tunnel, Sayonara no Deguchi (The Tunnel to Summer, the Exit of Goodbyes), based on the novel by Mei Hachimoku and the 2022 film adaptation directed by Tomohisa Taguchi.
Summer in anime represents freedom, adolescence, and fleeting beauty. By setting the story in summer, the film argues that youth itself is a kind of tunnel—you enter naive, and you exit as an adult, often losing something precious along the way.
The final act of The Tunnel to Summer is heartbreaking in its execution.
When Kaoru finally enters the tunnel to retrieve his sister, he succeeds. He finds her. But he also finds Anzu’s manuscript—a symbol of the dream she gave up on. In a moment of clarity, Kaoru realizes that to bring his sister back to the "present" would be to deny reality. She belongs to the past.
The turning point is Kaoru’s decision. He could stay in the tunnel with his sister in a timeless loop, but he chooses to leave. He chooses the uncertain, painful reality over the comfortable dream. He chooses the future.
However, because of the time dilation, he returns to find that decades have passed. He is still a teenager, but the world has moved on. His friends are grown; his town has changed.
This is where the story takes a bittersweet turn. In the film adaptation, we get a glimpse of an older Anzu, who has waited for him—or rather, lived a life where she never forgot him. The ending is left slightly ambiguous but hopeful. It suggests that while you cannot get lost time back, you can choose to start living in the now.
The Tunnel to Summer, the Exit of Goodbyes will frustrate viewers expecting a summer adventure or a tear-jerker romance. It’s not here to make you cry. It’s here to make you sit in silence after the credits roll and ask yourself: What would I trade for a wish? And would I recognize happiness if I got it without the time it takes to grow?
Recommended for: Fans of Penguin Highway, The Place Promised in Our Early Days, and anyone who’s ever stayed up at night replaying a mistake they can’t undo. "The tunnel doesn't take your time
Not recommended for: Those who need clear happy endings, fast-paced fantasy, or loud emotional releases.
The tunnel waits. But so does summer. The film’s final gift is that it lets you decide which one you’d rather walk toward.
The anime film The Tunnel to Summer, the Exit of Goodbyes (Natsu e no Tunnel, Sayonara no Deguchi) is an atmospheric and emotionally resonant coming-of-age story that explores themes of grief, first love, and the cost of dwelling on the past. Plot Overview
The story follows Kaoru Touno, a high schooler haunted by the death of his younger sister, Karen. He discovers the legendary Urashima Tunnel, which is rumored to grant any wish in exchange for years of your life—time passes much slower inside the tunnel than in the outside world. Kaoru teams up with a mysterious transfer student, Anzu Hanashiro, who has her own reasons for seeking the tunnel's power. The Highlights
Here is the content you requested regarding "Natsu e no Tunnel, Sayonara no Deguchi" (The Tunnel to Summer, the Exit of Goodbyes) , specifically focusing on the "full" experience — including the full plot summary, full ending explanation, and where to find the full movie or novel.
The Japanese title uses "sayonara"—not "ja ne" (see you later). Sayonara implies a final farewell. The film concludes that true maturity is not holding on but learning to let go. When Kaoru finally says goodbye to Karen, he is not abandoning her; he is honoring her memory by living his own life.
The story is set in a quiet rural town rumored to contain the "Urashima Tunnel," a local urban legend. The tunnel operates on the folklore principle of Urashima Taro: time passes differently inside than outside. However, the specifics are inverted. Inside the tunnel, time nearly stands still, but for every few seconds spent within, years pass in the outside world.
The protagonist, Kaoru Tono, is a high school boy trapped in a cycle of guilt and regret following the death of his younger sister, Karen. He believes the tunnel may offer a way to reclaim the past. He soon encounters Anzu Hanashiro, a mysterious new transfer student who is equally isolated and driven. They form a pragmatic alliance: Kaoru wants to save his sister, while Anzu seeks to reclaim something of her own.
Fans praise the film for:
Critics note that the middle section feels rushed in the film compared to the novel, but agree the ending is satisfyingly full.