代替体弱多病的妹妹，主人公彰穿上女装到贵族女校去读书。 决心掩饰着原本身份，平稳得在这所有悠久传统的教会女学院里生活，直到妹妹回来。 然而，事情并非彰所想的能平平安安过上学园生活，不知为何他被学园第一的超级大小姐一眼看上，成了席卷整个学园的欢乐闹剧的中心！ 彰究竟能不能平安无事地当好妹妹的替身呢！？

Iojaku Tsumugi, a mysterious yuri novelist known for her delicate portrayals of love between girls, has gained popularity while remaining completely absent from the media. The truth? Iojaku Tsumugi is actually a man named Kuze Naofumi. But even he’s hit a creative slump. After a certain incident, he hasn’t written a word in nearly a year. His go-to solution for writer’s block—cross-dressing—hasn’t worked this time. That’s when his older sister and editor, Ryoka, suggests a new way to find inspiration: becoming the caretaker of a girls’ dormitory. A prestigious all-girls school is undergoing sudden renovations and needs someone to manage their temporary dorm. “But that school’s strictly no boys allowed, right?” “Just cross-dress.” “No way. I’d get caught for sure.” “Heh, so you’re interested?” “Are you even listening to me?” Despite his protests, Naofumi ends up taking the job as the live-in dorm mother. Now, as “Fumimori Nao,” he—or rather, she—must live under the same roof as three female students. Can Nao keep her true identity hidden while living and sleeping alongside these girls? (Spoiler: Probably not.) [Translated from [url=https://www.dlsite.com/pro/work/=/product_id/VJ015243.html/]dlsite[/url]]