Otome Domain The Animation

Left alone after his grandmother's passing, the protagonist is offered assistance by a female administrator of a private all-girls academy, who is his age and from a wealthy family. Having no other options, he accepts and begins residing in the school's dormitory while disguised in a female uniform. His new housemates, however, exhibit peculiar behavior. One resident casually remarks about going out without underwear, prompting his immediate and concerned intervention. This arrangement, intended as a new beginning, quickly raises questions about who is actually looking after whom.