Insomniac architect Gu Yanchen is drawn in by the warm glow of the shop “Evening Breeze Sweets.” A caramel pudding brings him together with Su Wan, a pastry chef. He improves the shop’s design, while her desserts soothe his insomnia. Their late-night encounters turn into days spent side by side. Together, they face challenges at work and protect their dreams, turning the spark between them into a warm promise for the rest of their lives amid the bustle of everyday life and the sweetness of her treats.