This movie is Sakuta watching his sister take baby steps back into the world and realizing he can't protect her through it anymore. The supernatural stuff takes a backseat because the real mystery is watching Kaede decide who she wants to be, and whether her brother can let her fail. It's quiet and small in a way the first film wasn't, which means it lands harder when it does break you, the ending song plays and you're thinking about what you'd give up for someone you love.
Sakuta's final months before graduation arrive with bittersweet timing. Mai's in her last year too, making their remaining time together feel suddenly finite. But Sakuta's attention splits when his sister Kaede, who's spent years trapped by anxiety, announces something unexpected: she wants to enroll at his high school. It's the kind of goal that sounds simple until you understand what it means for someone still learning to exist in the world again. Supporting her seems like the obvious choice. Except Sakuta carries a weight of doubt. Is she pushing herself toward genuine growth, or chasing an idea of normalcy that might break her all over again? The closer her dream gets to reality, the more complicated his role becomes. Between watching Mai move toward her future and wrestling with whether he's helping or enabling his sister, Sakuta finds himself questioning what it actually means to support someone you love. Sometimes the hardest thing isn't saying yes or no, but knowing which one truly matters.