The Student Council President of Nijigasaki High School and a 1st-year member of the School Idol Club. She is childhood friends with the 2nd-year Lanzhu Zhong, and they call each other by their first names despite the grade difference.

A 3rd-year member of the Nijigasaki High School School Idol Club and daughter of the world-famous Taylor musical family. She is a bit cheeky and has a strong obsession with hamburgers and baseball.

A 2nd-year member of the Nijigasaki High School School Idol Club, a girl of mixed Chinese (Hong Kong) and Japanese descent. She is extremely confident and narcissistic, mistaking even sarcasm for praise. She is childhood friends with the 1st-year Shioriko Mifune.

Shioriko's older sister and a student teacher at Nijigasaki High School. While she can be a bit clingy and annoying toward her sister, she is a kind person who always cares for Shioriko.

Mia's older sister, a woman with a rational mindset. She acts entirely for Mia's sake, providing the best support for her dreams out of a deep love for her sister.

Lanzhu's mother and the Chairwoman of Nijigasaki High School. She often behaves in ways that are easily misunderstood.