Qin Fen, a middle-aged inventor, finds sudden wealth after selling his latest invention. He decides to use his newfound fortune to find a life partner, placing an advertisement online for potential matches. With humor and sincerity, he meets an array of women, each encounter revealing the complexities and absurdities of modern relationships. Along the way, he befriends a stewardess named Liang Xiaoxiao who is dealing with her heartbreak from an unfaithful lover.

As Qin continues his search, his bond with Liang deepens, creating an intricate web of emotions and personal growth. They engage in deep conversations about life, love, and happiness, becoming confidants and allies in their separate quests for fulfillment. Their evolving relationship and shared experiences lead them to confront their own desires and misconceptions.