In 1977, the cold wind blew through.
Fang Mujing, a math genius with a humble background and a bleak future, meets Qu Hua, a gentle and tolerant young doctor who has already had a secret crush on her when her younger brother is critically ill and desperate.
A contractual marriage that began with "each takes what he needs" begins here. Misunderstandings about substitutes, ups and downs of the times, thousands of miles apart, ten years of secret love... They got closer amidst misunderstandings, stayed with each other through ups and downs, and went from relying on each other to falling deeply in love.
This is a period of innocence that belongs to Fang Mujing and Qu Hua, from a glimmer of hopelessness to a lifelong companionship.
It started in a desperate situation and ended in deep love.
