Yu Miaomiao, a good-for-nothing descendant of a wealthy family several generations removed, shows disrespect while paying respects to her ancestors and is knocked unconscious by an ancestral tablet. She transmigrates into the body of Yu Miaomiao, the great-grandmother who founded her family. Facing her great-grandmother's abusive ex-husband, her young grandfather, and a life of poverty, she takes over her great-grandmother's life to preserve her identity as a wealthy heiress. Guided by her family history, she launches a food business using hot-and-sour noodles and crayfish as her breakthrough products. Along the way, she repeatedly foils schemes by her husband's family, suppression by competitors, and pressure from powerful investors, growing from a street vendor into the owner of a grand restaurant and laying the foundation for her family's wealth. In the end, Yu Miaomiao returns to the modern era and reforms herself, while the real Yu Miaomiao takes over her legacy and protects the family. Meanwhile, as Yu Miaomiao works to maintain the business, she also encounters true love.