Chen Xuhe, a restaurant owner, has long allowed his sister-in-law, Su Qianqian, to eat and drink for free at his establishment. In just one month, she racks up an unpaid bill of 100,000 yuan. When he finally asks her to pay, his wife, Su Wanning, slaps him in front of everyone and forces him to apologize to her younger sister. Furious, Chen returns to the front desk, only to see the lucky cat figurine suddenly glow with golden light and begin speaking, warning him of what is coming. Su Qianqian, bitter over being asked to pay her debt, is planning to book the entire restaurant for her birthday party two days later and deliberately order the most expensive dishes to make him pay. Taking the lucky cat's advice, Chen transfers ownership of the restaurant in advance, leaving Su Qianqian to foot the 500,000-yuan birthday banquet bill herself. Later, Su Wanning finally sees through her family's schemes and comes to her senses. Together, the couple establish firm boundaries, refuse to provide endless financial support, run a new restaurant together, protect their little family, and find genuine happiness.