Luo Yao, a poor boy and a scumbag, in order to save his critically ill foster mother, he married into the wealthy Lin family for his young son, and became a "son-in-law" who could be bullied by everyone. On the night of their wedding, he received a divorce agreement, followed by the second lady Lin Shuang's attempts to make things difficult, poison her, frame her up, and trap her. Everyone thought he would not survive more than three chapters, but he awakened to the "responsibility system": every time he fulfills a promise, he can gain knowledge, wealth, reputation and skills. With his heart-warming tenderness and his iron fist when faced with tough situations, he worked step by step in the Lin family, abusing his scumbag sister, rescuing his sick wife, investigating drug cases, seizing equity, and digging up the shocking secrets of the marriage between the two families twenty years ago. The mystery of his life experience was revealed, and he was actually the eldest son of the Luo family. Lin Wanqing's illness, his adoptive mother's poison, and the ambition of the behind-the-scenes tycoon Mr. K all stemmed from the same genetic scam. Faced with the ultimate choice between "responsibility" and "personal happiness", Luo Yao used a ridiculous substitute marriage to reveal the deepest dark curtain of the wealthy family. "You only saw me getting married, but you didn't see me doing justice for heaven." From a scumbag son-in-law who can be bullied by everyone, to a genetic legend that stirs up international capital, this is a cool document that exchanges responsibility for life and changes fate with sincerity.