When the collapse of the family and the whirlpool of interests pushed Lin Zhiyi to a desperate situation, a seemingly cold business marriage became a life-saving straw. Huo Chenzhou, the president of the Huo family, broke into her world with a marriage proposal. This marriage, which started with a contract, was originally a transaction where each got what he wanted. However, in the daily fireworks of getting along day and night, and in the crisis test of the ups and downs of the business world, a different kind of sentiment quietly developed. From respecting each other as guests to secretly falling in love, from conspiracy and calculation to life and death dependence, they joined hands to overcome many obstacles, used trust and love to combine a marriage of interests, and composed the most touching love song.