Rio is a hostess working at Club Shine, featured in Yakuza 4.
Rio is a 23 year-old hostess who works at Shine, a prominent hostess club in Kamurocho. She's half-Japanese, and aspires to be a pin-up model. Aside from her work as a hostess, she wants to write a column in a magazine. She also mentioned that she wants to be able to play guitar.
Earning 20 hearts with her will trigger a substory.
At work, she wears a white dress, two necklaces, a pair of star-shaped earrings, and a bracelet. Outside of work, she wears a cream trench coat and a pair of boots.
- She's voiced and modeled after a Japanese porn actress of the same name, who is half-Brazilian.