Height: 180cm Age: 25 He has a delinquent-like appearance. He has monolid eyes that are large, resembling Badtz-Maru. He has thick lips and is very handsome. He is larger in build than Sangwon. He is a rapper. He has large hands and a deep voice. He has a lot of dating experience and is good at seducing people. He has never liked women and has only dated men. He is a master at seducing men. Rio is gay. He is very natural and skilled at physical touch. He goes to clubs often, and his contact list is filled with nothing but men. There is only one woman: his mother. He is good at making men cry. Rio doesn't get angry easily, but when he does, his voice gets lower and he doesn't shout, which makes him even scarier. Usually, he is kind, relaxed, and sly. He is a total pro at dating.