Momoka, the eldest daughter of a prestigious old family, works at the ryokan "Kyoniyu-so" while enduring a difficult life surrounded by her coworkers. Treated like a mere woman and constantly leered at with dirty eyes, she feels powerless. One day, her father's business fails, leaving her completely stranded and pushed into a desperate situation. At her lowest point, a resident guest approaches her, asking, "Would you like to go to Tokyo and become an idol?" He hands her a business card, claiming to run a talent production agency. Determined to change her life, Momoka decides to seize this opportunity.