This Boy Caught a Merman (2012)

Shima Kawauchi stands alone at the shore after his grandfather's funeral, holding onto the small keepsake or photograph that represents the only person who ever gave him real stability. The sea is calm, the air heavy, and everything about the moment feels suspended between mourning and emptiness. Shima has spent his whole life trying to be the perfect, obedient boy--quiet, careful, easy to please--because that is how he survives the damage left by his parents' divorce and the emotional instability that followed. Even before the story properly begins, that loneliness has already hollowed him out. He looks like someone surrounded by people but never truly held by anyone.

Then the story's first cruel turn arrives. The picture or memorial item slips from his hands and falls into the water. It is such a small accident, but it becomes the spark that breaks him open. Shima, unable or unwilling to let go of the last thing tied to his grandfather, impulsively dives in after it. The water swallows him almost immediately. He thrashes, sinks, and realizes too late that he cannot swim well enough to save himself. The shoreline blurs, sound becomes distant, and the opening scene turns into a near-death experience born from grief, panic, and desperation.

At the exact point where Shima is about to drown, a mysterious young man appears and drags him back from the sea. The rescue is sudden and surreal, like a dream cutting through a nightmare. When Shima regains some awareness, he is still dazed, half-convinced he must be hallucinating. In that vulnerable state, he says what he has never been able to say to anyone clearly: he is lonely. He admits that no matter how many people are around him, he feels alone all the time. The stranger listens, then makes a promise that becomes the emotional spine of the whole story: he says he will stay by Shima's side for as long as Shima needs him.

That stranger turns out to be a merman.

The revelation does not explode into spectacle so much as settle into the film with gentle wonder. The fantasy element arrives with complete matter-of-factness, as if the universe has simply decided that this is the one person who can pull Shima out of himself. Shima, still stunned and emotionally raw, takes the merman home. In a tiny but intimate act of ownership and affection, he gives him a name: Isaki. That naming matters. The merman is no longer just a rescuer or a beautiful impossible creature from the sea; he becomes someone Shima can call to, think about, and share space with. In naming him, Shima begins creating a place for him in his private world.

From there, the story settles into a quiet domestic rhythm. Shima's home becomes the main setting, and the change in atmosphere is immediate. The place is no longer just a house associated with loss and absence; it becomes a shared space where two lonely beings begin learning each other. Isaki is curious about human life in a way that is often playful, simple, and disarming. He watches Shima, questions everyday things, and behaves with a kind of open sincerity that Shima has almost forgotten how to handle. Shima, for his part, starts to let himself breathe. Around Isaki, he does not have to perform perfect obedience. He does not have to flatten his feelings into something acceptable. He can be sad, embarrassed, shy, or even happy without immediately hiding it.

This is where the film's emotional tension grows rather than disappears. Shima's grief has not vanished; it just has company now. He still carries the absence of his grandfather, and the memory of that loss sits in the background of nearly every scene. The grandfather's death is the only clearly established death in the story, and though it occurs before the film begins, it is the wound from which everything else emerges. There is no murderer, no violent conspiracy, no external villain. The death is simply the empty space that remains after a beloved guardian is gone, and the film treats that absence with great tenderness. It is because Shima has lost the one adult who gave him safety that he is so susceptible to emotional collapse. It is because he has been taught to suppress himself that the arrival of Isaki feels like oxygen.

As the two live together, their bond deepens through the most ordinary moments. Domestic routine becomes intimacy. Silence becomes comfort. Shared time becomes trust. The middle portion of the story is built on small observations rather than large events: Shima learning to smile more naturally, Isaki learning what human habits look like, both of them quietly adapting to each other's presence. The film makes these scenes feel warm without becoming trivial. Every shared glance and every casual exchange suggests that something dangerous and tender is forming between them. What begins as companionship slowly takes on the shape of love, even if neither of them fully names it at first.

Shima's emotional condition also begins to change. He is still the boy who has spent his life trying to please others, but with Isaki beside him, he starts to rediscover a self that is not purely obedient. That transformation is one of the story's key revelations: Shima is not naturally emotionless or detached at all. He has simply learned to bury himself in order to survive. Isaki, by contrast, is not a magical solution or a static fantasy figure. He is lonely too. He has his own feelings, his own uncertainty, and his own capacity for hurt. The relationship between them becomes moving because it is not one-sided rescue; it is mutual recognition. Each sees loneliness in the other and is changed by it.

The emotional center of the story shifts when Isaki begins to feel lonely in a different way. Up until then, he has been the one offering steadiness. But living in Shima's world, separated from the sea and from whatever place belongs to him as a merman, weighs on him. He starts to realize that Shima may be able to live more happily without holding onto him so tightly. That realization creates the film's first true rupture. Isaki decides to return to the sea.

The moment of departure is quiet, which makes it more painful. There is no grand argument, no dramatic betrayal. Isaki simply leaves, and the absence he creates is enormous. Shima comes home and discovers that he is gone. The house, once softened by shared life, becomes hollow again in an instant. The contrast is devastating. The person who had filled the silence is no longer there, and Shima is forced back into the emotional void he had only just begun to escape.

Panic takes over. Shima runs back to the beach in desperation, chasing the only person who has made him feel truly seen. The shoreline, which opened the story as a site of grief and danger, returns now as the place where heartbreak becomes action. The film mirrors its opening intentionally: Shima cannot bear another loss, and he throws himself toward the sea as if refusing to accept the separation. The water again becomes threatening. Shima, once more unable to cope with it safely, risks drowning a second time. This is not just physical danger but emotional collapse made visible. He is chasing love, but he is also chasing the only version of belonging he has found.

Then comes the second rescue, and with it the climax. Isaki saves Shima again.

That rescue is crucial because it resolves everything the film has been building. The first rescue was survival; the second is understanding. Shima and Isaki finally speak with total honesty about what they mean to each other. Their bond is no longer ambiguous affection drifting between loneliness and dependency. It is explicit romantic feeling. They acknowledge that what they have is deeper than friendship, deeper than convenience, deeper than comfort alone. The story does not make this feel like a sudden twist so much as the inevitable completion of everything they have already been becoming to one another.

The final scenes carry the emotional weight of both reunion and resolution. Shima, who began the film as a boy unable to express himself honestly, now stands at the center of a relationship built on mutual need and mutual care. Isaki, who began as a mysterious rescuer from the sea, has become someone with his own agency, his own loneliness, and his own place in Shima's life. The separation that nearly undid them is answered by their renewed commitment to each other. There is no tragic ending, no death waiting to snatch away the happiness they have reached. Instead, the story closes on the implication that they will continue forward together, no longer hiding what they feel.

What makes the ending land so strongly is how completely it completes the opening wound. The boy who nearly drowned after losing his grandfather's keepsake is the same boy who nearly drowns chasing the person he loves. In both moments, the sea threatens to swallow him. In both moments, Isaki reaches him in time. The first rescue saves his body and opens his heart; the second rescue saves his heart from being closed off again. By the end, Shima has not only found someone beside him, but also begun to recover the part of himself that had been taught to disappear. The final feeling is one of quiet, fragile hope: a human boy and a merman, separated by species and by worlds, choosing each other anyway.

Sam is driven by a deep sense of curiosity and a longing for adventure. He feels isolated in his everyday life and is searching for something extraordinary to break the monotony. When he discovers the merman, he sees an opportunity to connect with something magical and to escape his mundane reality.

Sam first encounters the merman while exploring a secluded beach. He is initially shocked and mesmerized by the sight of the merman, who is both beautiful and otherworldly. This encounter ignites a mix of fear and fascination within Sam, compelling him to learn more about the merman's world.

Sam faces several challenges, including the fear of being judged by his friends and family for believing in the merman. Additionally, there are physical challenges, such as the merman's need to return to the ocean and the dangers that come with it. Sam also grapples with the emotional turmoil of wanting to help the merman while dealing with his own insecurities.

Sam's friends initially serve as skeptics, doubting his claims about the merman. They represent the societal pressures that challenge Sam's belief in the extraordinary. However, as the story progresses, some friends begin to support him, showcasing the theme of friendship and loyalty as they join him in his quest to protect the merman.

The merman evolves from a mysterious and distant figure to a more relatable character as he shares his struggles and desires with Sam. Initially, he is wary of humans due to past experiences, but as he forms a bond with Sam, he reveals his vulnerabilities and dreams, ultimately showcasing a deep emotional connection that transcends their different worlds.