Sakuta has to choose between the girl he loves and the girl he could have saved, and there is no right answer. The movie spends two hours stripping away every emotional defense you built, then asks you to sit with a decision that breaks him either way. Mai and Shouko's arcs don't resolve into neat closure, they collapse into something heavier, something true.
Sakuta's relationship with Mai finally feels real, stable, grounded in the present. Then his first love reappears, except she doesn't. Instead, two versions of Shouko Makinohara exist simultaneously: a middle schooler and a woman in her twenties, both insisting they're the genuine article. The adult Shouko's sudden presence creates friction between Sakuta and Mai, testing everything they've built together. But complications multiply when Sakuta learns that the younger Shouko carries a terminal diagnosis, and his mysterious scars start acting up again. What should be a straightforward reunion spirals into something far more complicated, where the rules of reality bend around supernatural phenomena that Sakuta still doesn't fully understand. He's caught between protecting Mai, unraveling the mystery of Shouko's duality, and confronting what it means to change and grow when the past refuses to stay buried. Romance becomes secondary to something deeper: the weight of choices, mortality, and whether love can survive when time itself becomes unreliable.