While patrolling the market, police officer Lin Yu chased Su Yao who stole the wallet and brought her back to the police station for interrogation. Lin Yu investigated and found that Su Yao was forced to steal due to family changes and her brother's serious illness. He felt sympathy and decided to help her. Su Yao offered to help Lin Yu crack down on the theft gang, on the condition that she take care of her younger brother. The two developed a secret love during their cooperation. However, Su Yao's identity was exposed and Lin Yu faced a career crisis. Su Yao chose to distance herself so as not to drag him down. Lin Yu found out that Su Yao was threatened by the remaining gang members of the theft gang, and eradicated her regardless of the danger, and the two reconciled. Lin Yu took Su Yao to meet her parents, and proposed marriage after being approved. Although there were many twists and turns in preparing for the wedding, they finally got married with everyone's blessings and started a happy life.
