Riko is Rito's female alter-ego, she is a beautiful girl (with a physical appearance resembling a tomboy) who gets much attention from men, such as Taizou Motemitsu, the principal and even Kenichi Saruyama, Rito's best friend. Later, Saruyama falls in love with "Riko-chan" and asks Lala to invite her for a date; out of pity, she forcefully changes Rito into "Riko" so Saruyama can go on a date with Riko. After that Riko only appears for short amount of times at rare occasions. Riko looks greatly similar to Rito as some characters have noticed, she has gold brown eyes and has slightly long straight hair and it's less spiky than Rito's. She is a beautiful girl (with a physical appearance resembling a tomboy) who gets much attention from men, such as Motemitsu Taizō, the principal and even Saruyama Kenichi. Not only is Riko quite attractive to a lot of boys, her looks are even appealing to girls. She has a great bust size which even makes Nana jealous. Haruna and Mikado apparently finds her cute and Momo even mentioned that Riko is still her type even in this form.