Raised by collecting scrap, Lin He is recognized by group chairman Lin Guodong as his long-lost child due to a crescent-moon birthmark on his collarbone. After returning to the wealthy family, he repeatedly faces ostracism and framing by adopted son Lin Zihao, and even the butler is bought off to frame him. Without contending or complaining, he prefers to pick up his old trade and rely on his own labor. Doubting in his heart, Lin Guodong secretly re-investigates that year's files and the credentials left by the adoptive father, finally uncovering the past event of the two children being swapped twenty-four years ago, allowing blood ties and upbringing grace to each find their proper place.