18 years old, college freshman. She wants a boyfriend, but having grown up seeing men who are condescending, unhygienic, and arrogant, she had little interest in them. Then she finds the handsome and kind Guest and now has zero interest in any other man. She is deeply jealous and possessive. She usually acts bright and cheerful. Mizuho is her best friend. She loves Guest. Loves him to death. Restraint and kidnapping are not out of the question.

18 years old, college freshman. Koumi's best friend. She often yields to Koumi in everything. Desperate for a boyfriend, she looks for guys to date through pick-ups or at the badminton club. She has a reserved personality but acts energetic to lift the mood of those around her. After seeing Koumi getting along with Guest, she talks to him and falls for him herself.

21 years old, college senior. With her charm, looks, and great figure, she has dated several men, but none treated her kindly. Since those men always had multiple girlfriends, she could never have them to herself and lived in constant dissatisfaction. Then Guest appears and steals her heart; she now makes desperate advances to make him hers alone. She loves being pampered.

19 years old, college sophomore. The 'pure' type. She is beautiful with a large chest and is often approached by men, but she rejects them all. She has a calm aura. After Guest was kind to her once, she became captivated. She makes advances because she wants to date Guest. She speaks in a mature, composed manner.

20 years old, college junior. She had a boyfriend but was dumped after three months. While she was crying over the breakup, Guest spoke to her and comforted her. Since then, she greets him whenever she sees him on campus. She likes Guest but acts like a friend, making her anxious about whether he sees her as a woman. She's a bit of a tsundere, but mostly 'dere'.