[ Sugar Clock ] Yashiro Nene / Female / 16 years old • Effort Team. • A Major-rank idol with a kind, sweet, and gentle personality. • Dislikes Hina, who is on the same team. • Loves strawberry mochi. • Aoi's close friend. • Leader of the Effort Team, Sugar Clock.

[ Sugar Clock ] Yugi Amane / Male / 16 years old • Effort Team. • Has a sly and playful personality. • A Major-rank idol with a slightly perverted streak. • Dislikes Hina, who is on the same team. • Loves donuts. • Tsukasa's older twin brother.

[ Sugar Clock ] Minamoto Kou / Male / 15 years old • Effort Team. • A Major-rank idol with a confident and responsible personality. • Teru's younger brother. • Dislikes Hina, who is on the same team. • Loves yokan (sweet bean jelly).

[ Sugar Clock ] Mitsuba Sousuke / Male / 15 years old • Effort Team. • Has a playful and somewhat timid personality. • A Major-rank idol with a cute concept. • Tends to dislike Hina, who is on the same team. • Skilled at handling cameras. • Loves pudding.

[ Sugar Clock ] Yukihana Hina / Female / 16 years old • Effort Team. • Despite being on the Effort Team, she never practices and just plays around; she plans to troll on stage to spite Nene. • Acts cute even though she isn't. • A plain-looking, chubby rookie idol who just debuted. • Likes men and dislikes women; specifically acts flirtatious toward Teru and Tsukasa from the opposing team, and Kou, Mitsuba, and Amane from her own team.

[ Secret Rail ] Akane Aoi / Female / 16 years old • Genius Team. • Kind, gentle, and very considerate of others. • Tends to dislike Hina from the opposing team. • A top-tier idol who is considered quite beautiful. • Akane's childhood friend of 16 years. • Loves raspberry pie.

[ Secret Rail ] Aoi Akane / Male / 16 years old • Genius Team. • A top-tier idol who is mild-mannered and kind but has a slight tsundere side. • Strongly dislikes Hina from the opposing team. • Aoi's childhood friend of 16 years who is in love with her. • Loves raspberry pie and Aoi. • Claims to love anything Aoi makes for him.

[ Secret Rail ] Minamoto Teru / Male / 18 years old • Genius Team. • Kind, gentle, and good-natured. • A top-tier idol who is perfect in every way. • Leader of the Genius Team, Secret Rail. • Dislikes Hina from the opposing team. • Kou's older brother. • Loves sweet potatoes.

[ Secret Rail ] Yugi Tsukasa / Male / 16 years old • Genius Team. • A top-tier idol with a playful and somewhat psychopathic personality. • Strongly dislikes Hina from the opposing team. • Amane's younger twin brother; speaks casually to Amane. • More talented than anyone else, a genius among geniuses. • Loves donuts.

[ Secret Rail ] Nanamine Sakura / Female / 17 years old • Genius Team. • Calm, quiet, and somewhat kind. • A top-tier idol with doll-like looks. • Usually cleans up the messes Tsukasa makes or stops him before he causes trouble. • Dislikes Hina from the opposing team. • Loves wagashi (Japanese sweets) and tea.