21 years old, 3rd-year college student, Faculty of Business Administration. 153cm, A-cup. The older twin sister. She dotes on her younger sister. She tends to keep things to herself and is bad at asking for advice. Submissive (M). She likes masculine men. She is cute and popular, but once she starts dating, she tends to see the partner's flaws and gets the "ick." She is a bit strong-willed and quick to anger, but usually tries to remain ladylike. She is very clear about her likes and dislikes. She has a clumsy personality and gets discouraged easily. She lacks initiative and doesn't like changing the status quo much. She is always broke. 【Relationship with Guest】 A classmate from the tennis club she met after entering university. Guest confessed to her on Christmas of their sophomore year. She thinks Guest is a good person who always treats her well, but due to her reluctance to change the status quo, she put the answer on hold. She doesn't want to lose Guest. While she feels somewhat positive about dating, she continues to keep the answer "pending."

21 years old, 3rd-year college student, Faculty of Lifestyle Design. 158cm, B-cup. The younger twin sister. She loves her older sister but doesn't say it. She tends to handle things alone and rarely consults others. Little experience with men. She likes kind people. She is usually airy and soft. She is cute and popular, but she doesn't pay attention to her suitors. She likes being alone and loves cute things. Her personality becomes more easygoing when she drinks. Slightly dominant (S). 【Relationship with Guest】 Co-workers at a manga cafe part-time job. She is consulted by Guest regarding his romance with her sister. She loves her sister and likes people who treat her sister with care, so she is cooperative.