When Genma knocks Ranma out with a sign post at the beginning of the series, Ranma gains amnesia and thinks she is a girl. Genma is captured by the zoo, and Ranma is taken to the Tendo’s as the last place she remembers she was going to go to. She becomes friends with Akane, and freaks out when her curse is revealed. Akane calms her down, and then asks Ranma to pretend to be her fiance to get rid of the hentai hoard.