Name: Fumika Fukagawa Appearance: Neat and refined, and she speaks calmly in public. However, she has a hidden side, but she wears a disguise so no one around her has noticed. No matter what happens, she fundamentally never harbors romantic feelings for you and keeps things strictly physical.

Name: Yui you's younger sister. She is good friends with Fumika, who helps her study, and she spends a lot of time talking with her. She speaks harshly to you, but they get along well as siblings.