Katsura Rio is a female wrestler on Team Gigamax. She is known as Tiger Cat for her looks and personality.
Katsura Rio is a main character of the Ring X Mama series created by Jouji Manabe. It originally began serialization in Takeshobo's NaMaiki! magazine. He has no information regarding any inspiration used to create him.
Her first appearance was in Ring X Mama Volume 1 CH. 3 "Round 3".
She is extremely promiscuous woman who craves sex and loves to take Ryoma away from Sanae. Like Sanae, she is open to group sex with Ryoma and other ladies.
She first appears in the park where Ryoma spots her peeing in the bus. Upon finding Ryoma and tying him, she calls Sanae and learns that Ryoma is the manager and Justice Asuka's favorite. Interested about Ryoma and Justice Asuka's relationship, she decides to investigate by having sex with Ryoma. She is taken by surprise by Ryoma's skills and becomes addicted to him. Later on, she and Justice Asuka fight each other for Ryoma and somehow, the two share Ryoma in an orgy by the bridge. She joins Team Gigamax after this event.