Delivery driver Gu Shiyan used to be a "bad boy." By chance, he meets Su Ruan, who appears to be a cool, aloof nurse but is actually the boss of a gang. Their relationship begins with his persistent advances and her rejection, then takes a turn when Gu Shiyan desperately seeks her help as his mother lies critically ill. Bound together by the crisis, Gu Shiyan sees Su Ruan's true, vulnerable side and turns over a new leaf, taking responsibility for his actions. With Gu Shiyan by her side, Su Ruan breaks free from the darkness and embraces a new life. The two build a business and start a family, going from a relationship divided by their vastly different backgrounds to a happy ending with children of their own.
