Ganryu was banned from the sumo ring after he was caught fixing fights in his favor. Blackballed from the only sport that he was capable of fighting in, Ganryu ended up being employed by Heihachi Mishima in Tekken. He fights Yoshimitsu who defeats him and steals his ill-gotten money. Later, he works for Kazuya Mishima in Tekken 2. Entering the second King of Iron Fist Tournament, Ganryu ended up falling in love with Michelle Chang - a love that Michelle was oblivious to, believing Ganryu to be a disgusting, woman-crazed madman. After Michelle defeated him, and the disappearance of Kazuya, Ganryu returned to Japan.

(Source: Wikipedia)