Delinquent in Drag (1992)

Does being the only guy in an all-girl school sound like paradise? It might be, if the girls knew you were a guy, but to stay in school, teenage brawler Banji can't let can't let anyone find out he isn't just another pretty female face. Not only is he at the bottom of the social pecking order, he must also conceal his masculinity from classmate Otoko, who's stolen his heart, while avoiding the many delinquent gangs of girls who threaten to expose his less-than-feminine charms. Oh, and it's actually co-ed, so...