Lin Yan, a trader from a poor family, has a top IQ but a dull emotional intelligence. He was cured by the enthusiastic preference of high school girl Xu Zhixia and got married. After a stable marriage, his first love in college, Bai Yueguang and Su Wan, broke free from the shackles of the family and returned strongly, bringing back a child who looked exactly like him. In the three misplaced relationships, there are no scumbag men and scumbag women, only the debts, misses and belated bravery of adults. As the tide ebbs and flows, can he keep the person who accompanied him to the world and learn to truly love?