Reika Nonomiya

Height: 158cm
Likes: Money, meat, handsome men
Dislikes: Troublesome things, her older brother

The protagonist's younger sister who has been abusive towards him for a long time. Basically, she's OK with anything as long as it's fun, and is an active slut when it comes to sex (although she pretends to be, she's actually a virgin with no experience. However, she has given blowjobs and handjobs). She attends a third-rate university near her home and is not good at studying, but she has a quick mind and is good at coming up with evil schemes. However, her quick-tempered and simple-minded personality is her downfall, and this time she is used as a test subject for the hypnosis card kit developed by her older brother.

Note: Voiced by [Yuri Konami](こなみ由梨) in the erotic game.