Megumi, a nine-year-old martial arts enthusiast and all around rapscallion, always wanted to be "the manliest man on earth." After saving a sorcerer from a group of local thugs, Megumi is presented with a magic genie, which can grant any wish. Unfortunately, this genie is slightly hard of hearing, and misconstrues Megumi's original desire as wanting to become the "womanliest woman on earth" and in a flash, Megumi's Y chromosome is swapped for an X! Six years later... Megumi is the hottest girl in school, but has stayed true to his/her tough talkin', punk stompin' ways!!