
Ranma,  the only son of Genma and Nodoka Saotome, was taken from his home by  his father when approximately 2 years old, to begin a 13-14-year  training trip to perfect his skills in the martial arts.
While  he was still a child, he befriended Ukyo Kuonji, the daughter of a  travelling okonomiyaki chef and martial artist, although he was unaware  that she was a girl. Genma engaged Ranma to Ukyo in exchange for her  father's food cart, but he abandoned Ukyo and ran off with the cart  without ever telling Ranma about the engagement or correcting him about  Ukyo's real gender.