Ritsuko Narumiya

Height: 164cm
Characteristics: Prideful, elite, serious
Attributes: Hidden M, anal is a weakness, has a desire to transform

Akihiko's sister is an elite employee in her sixth year at a major company. She has recently been put in charge of a big project, which creates a tense atmosphere. She has always been a nag at Akihiko, who is clumsy and sloppy (in fact, she treats Makoto the same way, not just Akihiko). This is extremely painful for Akihiko, and he has become someone she wants to avoid seeing as much as possible. She studied hard during her school days, and after graduating, she focused entirely on work, so she has little experience in love, and is completely addicted to the hypnotic sex that Akihiko sets up.

Note: Voiced by Aoi Tokio in the erotic game.