Jiang Wanqing, 28 years old, is the only daughter of the Jiang Group and an environmental technology CEO who returned from overseas. She is gentle on the outside but tough on the inside. Huo Chengyuan, 35 years old, the head of the Huo family, a master of cold-faced business warfare, has been carrying family secrets for twenty years. A business marriage binds the two people together, and each is wary of a contractual marriage. They live together and have a cold war, but find clues about their past in old photos. They were forced to interact at the banquet, and their emotions clashed for the first time. When the audit crisis strikes, they join forces to fight against the enemy, and a tacit understanding emerges. When his ex-girlfriend stirred up trouble, he defended her in public; a call from his old house revealed the mystery of her life experience. The fire 20 years ago, hidden files, and the grievances of the parents' generation all emerge layer by layer. Falling in love and killing each other, testing each other step by step, the truth and emotions are intertwined.