Genma Saotome is a martial artist and father to Ranma Saotome. Trained in the Anything-Goes Martial Arts school under Happosai alongside his close friend Soun Tendo, he was often coerced into aiding his master’s inappropriate activities, fostering a lasting cowardice in dealing with Happosai.

He married Nodoka, and they had a son, Ranma. Soon after the birth, Genma insisted on taking the boy on a training journey to mold him into a great martial artist. He secured Nodoka’s reluctant agreement with a pact: if Ranma failed to become a “man among men,” both father and son would commit seppuku, with Nodoka presiding. This vow drove Genma’s frequently ruthless training approach.

Throughout their journey, Genma displayed poor judgment and selfishness, often engaging Ranma to multiple parties—such as Ukyo Kuonji and, in anime-only events, Kaori Daikoku—in exchange for food or other gains. In one notorious incident, he forced a young Ranma to learn the forbidden Nekoken technique by wrapping him in fish sausage and throwing him into a pit of starving cats, leaving Ranma with a severe cat phobia. On another occasion, near starvation with infant Ranma, Genma traded his son to a man named Mr. Daikoku for food, only to later steal Ranma back.

A pivotal moment occurred at Jusenkyo in China. Unable to read the warnings, Genma trained over the cursed springs. During a spar on bamboo poles, Ranma knocked him into the Spring of the Drowned Panda. In retaliation, Genma knocked Ranma into the Spring of the Drowned Girl. This curse transformed Genma into a giant panda when splashed with cold water, reverting with hot water. Unlike his son, Genma is generally comfortable in this form and often uses it to evade responsibility or embarrassment, frequently communicating via written signs while transformed.

After the curses, Genma brought Ranma to the Tendo Dojo in Japan to honor a decades-old promise to Soun Tendo: that their children would marry and continue the Anything-Goes School. Ranma was set to wed Soun’s youngest daughter, Akane Tendo, and both Genma and Ranma moved into the dojo.

Genma’s personality blends cowardice, laziness, selfishness, and impulsiveness. He often avoids confrontations with stronger foes, especially Happosai, and flees problems of his own making. He adheres to a personal, often hypocritical, interpretation of Anything-Goes Martial Arts. Frequently seen lounging at the Tendo home playing Go or Shogi with Soun, he maintains excellent physical condition and remains a highly skilled martial artist despite his portly appearance.

Dishonorable and scheming, he often pawns family possessions to settle debts and developed the Tatami Flip technique specifically to evade collectors during Ranma’s childhood. When confronted, he typically justifies his actions with flawed logic or escapes. On rare occasions, he has shown genuine care for Ranma, such as covering him with a blanket during training or expressing regret when using embarrassing photos to teach a technique.

As a martial artist, Genma is powerful but lazy. He created two dangerous techniques, the Yamasenken and Umisenken, but deemed them too violent and sealed them away after demonstrating them to Ranma. Once stronger than his son, he has since been surpassed by Ranma and other younger fighters like Ukyo Kuonji, Ryoga Hibiki, and Shampoo.

His relationship with Nodoka is complex. He initially concealed their curses by posing as a panda called “Mr. Panda” and claiming Ranma’s female form was a girl named Ranko. Nodoka eventually discovered the truth but accepted Ranma, judging him a man of character despite the curse.

His friendship with Soun Tendo is genuine and strong, though sometimes strained by Genma’s dishonorable behavior. They share a history and a desire to unite their families through Ranma and Akane’s marriage.

In all official media, Genma remains a consistent source of comedic trouble due to his poor decisions, a capable but reluctant fighter, and a father whose flawed parenting is occasionally interrupted by fleeting moments of concern.