Qin An, a young man raised in the deep mountains under a strict master, leaves his secluded life to travel to Yangcheng to fulfill a marriage contract with the Fang family. His master instructed him to become the Fang family's live-in son-in-law to repay an old debt, but Qin An is naive and inexperienced in the modern world. Shortly after arriving, he spots a "seeking a son" advertisement on a telephone pole, believing it to be a genuine chance for money, and ignores warnings from a passing long-legged beauty and an old man. He calls the number and meets Bai Jie, a heavily made-up woman who lures him into a room. There, two thugs attempt to extort him, but Qin An easily overpowers them with his incredible strength, knocking the men unconscious and slapping Bai Jie before taking more than two thousand yuan from their pockets, considering it ill-gotten gains.Qin An continues his journey to the Jiaoyan Company headquarters to find his wife, Fang Qingxue. His rustic appearance and direct manner cause a commotion at the front desk, where he insists on seeing his "wife." Two security guards try to eject him, but he effortlessly knocks them down. Forcing the receptionist to reveal the floor, he barges into Fang Qingxue's office. Upon meeting him, Fang Qingxue, a stunning and composed CEO, is shocked by his behavior. She immediately tries to buy him off, starting at one million and quickly raising the offer to five million. Qin An hesitates briefly but accepts the cash, abandoning the marriage contract. He exits the building carrying a sack full of money, eager to enjoy his newfound wealth.Using the cash, Qin An buys a meal at a small restaurant, displaying the sack openly. His recklessness attracts the attention of two thieves in baseball caps, who follow him. On the street, he coincidentally runs into the long-legged beauty from before, Su Su, a lively college student. Qin An boasts about beating the scammers and offers her two thousand yuan to help him find a place to stay. Su Su, amused and skeptical, agrees to show him a courtyard house in an urban village. As they walk through a dark alley, the two thieves intercept them, one holding a gun to Qin An's head and demanding the sack. When they threaten Su Su, Qin An acts instantly, grabbing the gunman's arm and throwing him into the other robber, rendering both unconscious. Police arrive, identify the men as wanted fugitives, and praise Qin An as a hero.After the incident, Su Su leads Qin An to her family's small courtyard. She rents him two rooms at a discounted price of four thousand yuan for the year. Qin An pays in cash, stuffing the remaining money under his bed. He prepares to visit Old Master Fang to deliver his master's regards. As he leaves the courtyard, he encounters Su Su's father, a burly and protective man who initially mistakes Qin An for a suitor chasing his daughter. After Su Su explains the situation and recounts their brave deed in the alley, the father's attitude changes to warm enthusiasm. He questions Qin An thoroughly, learns he comes from a small village and has a simple personality, and finally feels at ease with him as a tenant in their home.
