You watch a girl choose her brother over her reputation, and the movie doesn't make it dramatic or noble, it just lets you see what that costs, day by day. The cruelty comes from kids who don't understand, not from villains, which makes it sharper. By the end, you're not thinking about disability or acceptance as ideas; you're thinking about Mai holding Dai-Chan up, smiling back at him, because that's what love actually looks like when nobody's watching.
Mai's everyday routine shifts when her elementary school begins partnering with a specialized institution where her older brother Dai-chan attends. Dai-chan is deaf and nonverbal, yet his presence shapes everything about how Mai moves through the world. She's become his anchor, the person he reaches for when he needs grounding, even though he's technically her senior by age. Their dynamic inverts typical sibling hierarchy: Mai carries more than just physical responsibility. When her classmates discover this connection, they respond with cruelty. Mockery spreads through her classroom, and worse, her mother falls seriously ill. The family fractures under the weight of these pressures. An orphanage placement looms as a practical solution, but Mai refuses to accept it. She believes their bond transcends institutional care, that her devotion alone can hold them together. What unfolds is a quiet portrait of familial love stripped of sentimentality. Mai's determination forces uncomfortable questions about sacrifice, capability, and what we owe the people closest to us. The film sits in the tension between childhood stubbornness and genuine necessity.