Ouji na Hime to Hime na Boku

Overview

Tori, a low-ranking noble, longs to be manly—but with a delicate appearance and strong “girl power,” everyone mistakes him for a girl. One day, he’s scouted to serve as a dorm supervisor at an elite academy, home to the prestigious “Four Noble Clans,” warriors admired for their unmatched strength. Assigned to the very dorm where his ideals of manliness shine the brightest, Tori’s heart races with excitement… until the arrogant Eliza greets him with a shocking declaration: “Welcome! We’re counting on you to take care of us girls in this dorm!” Wait—what!? The legendary “Four Noble Clans” aren’t men at all, but beautiful young women!?

Source: AniList