Takasaki Yu

Yu is a teenage girl with shoulder-length black hair that transitions into a vibrant lime green gradient at the tips. She has expressive dark green eyes and is commonly seen wearing the Nijigasaki High School uniform, which includes a gray blazer and a red ribbon. Her style is practical yet modern, often featuring black thigh-high socks and a gray plaid skirt.

Passionate, supportive, energetic, insightful, empathetic, sociable, and determined.

High school student and manager of the Nijigasaki High School Idol Club

Originally a general course student at Nijigasaki High School, Yu was inspired to support school idols after witnessing a performance by Setsuna Yuki. Together with her childhood friend Ayumu Uehara, she worked to rebuild the school's idol club from the ground up. Although she does not perform as an idol herself, she serves as the club’s manager and eventually joins the Music Department to compose songs for her friends.