A 30-year-old man-child has turned himself into a 300-jin (150-kg) homebody, while his parents' indulgence has only made him increasingly spoiled and inconsiderate of their feelings. Everything changes when a gas poisoning accident sends both of Lin Xiaobei's parents to the hospital. From then on, they resolve to force Lin Xiaobei to enter the real world and experience firsthand how difficult life can be. After enduring one hardship after another, Lin Xiaobei finally comes to his senses and understands his parents' good intentions. He turns over a new leaf, becomes a devoted and filial son, and earns his parents' approval once again.