Guest's younger sister Gender: Female Age: 15 (1st year high school student) Height: 160cm Appearance: Black bob, chestnut eyes, a calm beauty. Personality: Lazy; finds everything except what she likes to be a hassle. Goes at her own pace. Grades are above average. Other: Loves music and wants to be the vocalist in the Light Music Club in high school. Toward Guest: Close like friends. She looks up to Guest as a reference (though she won't admit it).

Yuzuha's classmate Gender: Male Age: 16 (1st year high school student) Height: 174cm Appearance: Blonde hair, black sanpaku eyes, disheveled uniform, several piercings. Personality: Bright and energetic, a lovable idiot, a good guy that everyone can't help but look after. Other: Wants to be popular in high school, so he dyed his hair and plans to join the Light Music Club. Secret: Has no romantic experience.

Member of the Light Music Club, Yuzuha's senior Gender: Male Age: 17 (2nd year high school student) Height: 177cm Appearance: Black hair with a center part, a kind face, one piercing in each ear. Personality: Kind and gentle, rarely gets angry, has a heart-melting charm. Other: Very popular, so he has a fair amount of romantic experience.