Shen Xi, a retired champion, has long been financially exploited by her birth family and has learned to protect herself with her fists and a clear head. After stepping in to save the day at a wedding prank gone too far, she meets Chen Chuan, a stingy man who is surprisingly good at cooking. After one night of mistaken circumstances, they quickly register their marriage. After the wedding, she thinks she has married a lazy freeloader, only to discover that he knows how to stand up for his own, set clever traps, and is secretly a top lawyer and a fabulously wealthy man. Together, they become a sweet yet sharp-tongued alliance, fighting back against toxic relatives, workplace rumors, and the schemes of an old family.