A tunnel that gives you anything you want sounds like wish fulfillment until you realize what the movie is actually about: two people so broken they don't know what to ask for. The animation doesn't just support the story, it carries the weight of it, turning a rural Japanese summer into something that feels like a memory you're trying to hold onto before it disappears. What hits is how brutally it compresses grief and regret into ninety minutes, then refuses to let you look away.
Kaoru has spent years running from his past, keeping everyone at arm's length with a carefully constructed facade. When he stumbles upon the Urashima Tunnel in a forgotten corner of the countryside, he learns its terrible secret: enter it, and you can obtain anything your heart desires. The catch is always brutal. Anzu, a girl trapped between who she pretends to be and who she actually is, finds herself drawn to the same tunnel. Their meeting isn't coincidence. Together they chase down the tunnel's promise, each hoping to reclaim something lost or transform something broken. What unfolds across one summer is a story about the cost of wishes and whether getting what you want is worth what you must sacrifice. The film wraps nostalgia and melancholy around a supernatural premise that asks hard questions about desire, acceptance, and moving forward. This is for viewers seeking something that sits between heartfelt character drama and eerie mystery, where the real darkness isn't supernatural but human.