Contract Marriage, Falling into His Gentle Trap

He is the domineering and ruthless CEO of a business empire, and she is the daughter of a rich family who married off her sister to pay off her debts. With a contract, she became husband and wife in a flash marriage, and her life was never peaceful again... He was cold, cruel, and decisive in killing, but he couldn't do anything to her; she wanted to escape, but she fell into his gentle trap step by step.