A trainee of Team Gigamax who does not have a wrestler debut yet.
Yuri Kabayama is created by Jouji Manabe, and she has no information regarding any inspiration used to create her. She first appears in chapter 3 of Ring X Mama volume 1.
Yuri is a clumsy girl. Her family is part of a rich mafia. She is daddy's little girl because her doting father and her drive to make her father proud in her first wrestling debut.
She first appears when she tries to lift some boxes in the training room. When she falls, her hand lands on Ryoma's crotch. Immediately, Yuri slaps Ryoma and cries to Kirino who consoles her. After Team Gigamax's match against Team Mustang is over, Ryoma and Saeko reveal the new sparring gym that they got. To celebrate, several ladies drink and grope each other and drip alcohol over each other. Before Kirino and Yuri can leave, Saeko grabs them. Yuri does not have vaginal sex with Ryoma. Instead, she uses her body to caress Ryoma.
Later on, Yuri asks Ryoma to help convince her father to let her participate in her first wrestling debut. Even though Ryoma is scared of Yuri's father, Ryoma convince him by vowing to protect her. Yuri's father asks Ryoma when he will asks his daughter's hand in marriage. After some confusion, Yuri and Ryoma have sex. Yuri loses her virginity for the first time.