Ep. 1: Honoka Kōsaka aims to save Otonokizaka Academy from closure by forming a school idol group.

Otonokizaka Academy faces closure after graduation due to low enrollment, shocking second-year student Honoka Kōsaka. She and classmates Umi Sonoda and Kotori Minami seek ways to attract applicants, but Honoka is dismayed when her younger sister Yukiho chooses UTX instead. Investigating UTX, Honoka discovers its popularity stems from the school idol group A-Rise. Determined to save her school, she proposes forming their own idol group, despite Umi’s initial reluctance. After feeling discouraged, Honoka is inspired by a talented singer and pianist, renewing her resolve. Umi eventually joins Kotori in supporting the plan. Although student council president Eli Ayase rejects their request to establish an official club, Honoka remains steadfast in her determination to succeed.

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