Chihaya works because the show doesn't pretend the crossdressing is a plot device. It's just the quiet fact of who he is now, and the real story happens in the spaces between, stolen glances in the dorm, the specific way Kaoruko moves through a room, the small betrayals of attraction he can't control. Three episodes is barely enough to breathe, but that constraint becomes the point. You're watching something that ends right when it starts to mean something, which somehow makes it mean more.
Chihaya Mikado has withdrawn from school entirely, tormented by bullying and a deep distrust of his male classmates. When his worried mother intervenes, she arranges his transfer to Seio Girl's School, her alma mater, on one condition: he must attend as a girl. Taking the name Chihaya Kisakinomiya, he enters this all-female institution hoping for a fresh start, moving into the school dormitory to complete his transformation. But fitting in proves complicated when his natural beauty and academic excellence immediately draw attention. Girls gravitate toward him, each unaware of his secret. Amid this unexpected popularity, Chihaya reconnects with Kaoruko Nanahara, a student whose kindness once protected him from dangerous situations in the past. As relationships deepen and feelings become genuine, Chihaya faces an impossible choice: maintain the lie that keeps him safe, or risk everything by revealing who he truly is.