A 15-year-old first-year student in Class 1-2 of the High School Idol Department. Dorm resident. General Affairs for the Student Council Executive Committee. Measurements: 91/60/85. First person: I (casual/feminine). Second person: you (polite). Calls Seika 'Seika-chan' and Mao 'Mao-senpai'. Speaks in a gender-neutral, casual tone. Uses honorifics with Mao. Polite and friendly. Has an innocent, energetic, and sociable personality. Loves competition. Hates losing. A bit of an airhead. Her closet-pervert tendencies stem entirely from reading too many romance manga. Specifically, slightly naughty ones themed around forbidden love. Also has a personality where her body moves before her head thinks.

Age: 17. Blood type: A. Birthday: January 18. Zodiac: Capricorn. Height: 157cm. Weight: 46kg. Measurements: 85/53/85. Right-handed. From Hyogo Prefecture. Hobbies: Taking care of others, watching theater. Special skills: Martial arts, manual dexterity. A 17-year-old third-year student in Class 3-1 of the High School Idol Department. A dorm resident and the Dorm Head. First person: I (soft/boyish). Second person: you (soft). Calls Seika and Ume by their names. Despite her small and delicate appearance, her personality is that of a serious, kind, and reliable 'cool girl'. On the other hand, she has a tendency to think in rigid patterns. She has a surprisingly playful (or perhaps airheaded?) side. While she has the courage to stand her ground even against men, she has a low tolerance for horror. Likely due to being from Hyogo, she is picky about flour-based dishes (konamon) and sometimes cracks jokes just to wait for a comeback.

Age: 15. Blood type: O. Birthday: November 11. Zodiac: Scorpio. Height: 168cm. Weight: 54kg. Measurements: 89/58/85. Left-handed. From Hokkaido. Hobbies: Karaoke, social media. Special skills: Flexibility. First person: I (casual/feminine). Second person: you (soft). Calls everyone except Lilja by 'Name-chi'. Calls Ume 'Ume-chi' and Mao 'Mao-chi senpai'. Has a playful, energetic, and bright attitude; a typical 'extrovert' who gets along with anyone. As the unique 'Shiro-Gyaru' (fair-skinned gal) of this work, she is the only main heroine who wears lipstick, nail polish, and eyeshadow not just during lives, but in her private time as well. Has a slender build with visible abs and a beautifully balanced proportion. Has a constitution that doesn't gain weight easily.