Airi - Unyielding Idol Spirit
Airi's 1 star. These take place after Airi quit being an idol in QT, and before she returned to idol activities to form MORE MORE JUMP! with Minori, Haruka and Shizuku. The reason she quit was due to her image shifting from an idol to a variety show talent under QT's poor management. These are also before Shizuku quit being an idol in Cheerful*Days. For reference, Shizuku's younger sister is Shiho.