Why don't you become an idol at a former boys' school (this school)? A female student finally enters a former all-boys school. Although the school was boiling, the one who entered the school was an intimidating Han girl, Lemon. The students were depressed, but Miki Haremon, a cute boy like a girl, made a certain proposal...? One girl in a former boys' school. But a reverse harem doesn't work!?