To help her family tide over difficult times, Jiangnan girl Ban Ban enters into an engagement with Wen Ting'an, the CEO of the Wen Group who is twelve years her senior. Starting from a polite and distant contract marriage, the two gradually develop feelings for each other amidst the subtle warmth of daily life. After going through misunderstandings and adjustments, they step by step move towards a sweet marriage where they run towards each other.