Mizuki, a retired marathon runner with limited social skills and no experience in love, struggles to adapt to her new job at a high-end hotel due to her lack of customer service skills. Her life takes an unexpected turn when she meets Kaji, a charming dessert chef at the hotel known for his womanizing ways. After a frustrated Mizuki lashes out at him, Kaji surprisingly enlists her as his taste tester, potentially setting the stage for a sweet romance despite their seemingly incompatible lives.