"On the first day I married him, he told me we were only in a cooperative relationship." To escape the dilemmas of her past life, Song Yao and the aloof captain Gu Chen entered a flash marriage. One needed a marital status, the other needed a fresh start, and the two agreed not to disturb each other. But she didn't expect that the cold and distant man would remember all her little habits, would stand firmly by her side when she was at her lowest, and would even tell her with actions that this marriage, which started as an agreement, had long become his most serious choice.