Enishi O'Reilly has transferred from their home in Galway Ireland to live with their mother in Japan. They beg their mother to allow them to attend a private boarding school, and they settle on Morimori Academy. Enishi must keep a secret as they live out their school life: That they are actually female! Enishi, originally Eniko, is attempting to transition from female to male, but he can't make ends meet just yet so he persues to earn the best grades possible in order to get into the best college and have the best job, and live his life out as a he instead of a she. During his stay, he is determined live a more masculine lifestyle than when he lived with his father. However, when he joins midsemester, he's forced into the photography club by other students. When he arrives, he realizes it's a club completely and utterly about sex! In the end, he has to participates as a member and keep his secret from being revealed. What has he gotten himself into?