The Tunnel to Summer, the Exit of Goodbyes

The story takes place in rural Japan, primarily at Kasaki Station, a quiet train station known for its serene atmosphere and frequent rain. The central location is the Urashima Tunnel, a mythical passage that exists near this rural setting and has the power to distort time.

The Urashima Tunnel is a legendary tunnel near Kasaki Station with supernatural properties, it can manipulate time itself. Those who enter can potentially undo past regrets, but the tunnel extracts a heavy price: every use costs precious heartbeats, symbolizing the trade-off between desire and existence.

The movie is set in the present day, reflecting contemporary issues faced by today's youth including familial expectations, emotional isolation, and the pursuit of dreams. This modern setting grounds the fantasy elements in relatable, current struggles.

Time is a central theme explored through the Urashima Tunnel's ability to manipulate temporal experiences. Characters confront their pasts and learn that seizing the present moment is vital, time lost cannot be reclaimed. The theme emphasizes how time shapes personal growth and relationships.

Loss is a recurring theme that shapes both main characters. Kaoru grapples with grief over his sister's death, while Anzu deals with her own sense of familial abandonment. Their journey shows that overcoming pain requires embracing love, leading to healing and fulfillment despite the weight of loss.

Dreams, particularly Anzu's aspiration to become a manga artist, drive much of the narrative. The story explores how external pressures and internal fears can hinder ambitions, while also showing the importance of adapting and reclaiming lost dreams. Characters must balance their desires with reality.

Kaoru is a shy, introspective high school student dealing with deep emotional turmoil following his sister's death. His character arc involves confronting his grief and discovering inner strength through his relationship with Anzu. He is driven by love, nostalgia, and the need to face his past to move forward.

Anzu is an enigmatic transfer student from Tokyo who appears tough but harbors deep vulnerabilities. Abandoned and isolated, she channels her pain into artistic ambition, wanting to become a manga artist. Her character learns to confront her fears and pursue her dreams while forming a meaningful bond with Kaoru.

Koharu is the school's mean girl who embodies the harsh social dynamics Anzu faces after transferring. Initially antagonistic toward Anzu, she serves as a foil to Anzu's resilience. Her character evolution highlights the complexities of teenage relationships and the challenge of acceptance in a new environment.

The film has a predominantly bittersweet tone, blending hopeful romance and magical elements with the melancholic weight of past loss and sacrifice. While themes of family trauma and unfulfilled dreams carry serious emotional weight, a persistent thread of love and hope prevents it from becoming overwhelmingly bleak.