After relocating to Tokyo, Ino Sakura joins the newly established idol unit Fruit Tart. The group already consists of three other members: Roko Sekino, a former child actor whose career has stalled; Hayu Nukui, an aspiring musician who never made it; and Nina Maehara, a model still awaiting her first break. They quickly settle into their shared apartment, the Mouse House. Yet before they can fully adjust, a shocking truth hits them: Fruit Tart is burdened with a debt of one hundred million yen and yet to debut.
With the threat that Fruit Tart could disband and the Mouse House might be demolished if the debt isn"t cleared, the girls are forced to climb from the bottom of idol culture by carving out a reputation and composing original tracks. Fortunately, veteran idol Hemo Midori, an avid admirer of Sakura, opts to join the unit. Together, with bright smiles, they labor to rise in popularity while ensuring each day remains enjoyable. Their determination fuels an unbreakable bond, turning adversity into a shared triumph that resonates with fans worldwide. And inspires countless hopefuls everywhere today.