Cute Baby Strikes, Amnesiac CEO Wants to Be My Stepfather

Five years ago, Yu Shuyun was betrayed by her stepsister and fiancé. After a night with drunk Li Huaiyu, she became pregnant and fled abroad to give birth to An'an. Five years later, she returns with her cute baby for revenge and to investigate her mother's death. She reunites with Li Huaiyu, but he has lost his memory due to injury. To let An'an experience fatherly love, she pretends Li Huaiyu is her hired nanny. During their investigation, Li Huaiyu gets injured again protecting Yu Shuyun and recovers his memory, but hides this fact while secretly trying to do a DNA test. Yu Shuyun intercepts the test results twice. As they spend time together, they develop feelings for each other. An'an realizes Li Huaiyu has recovered his memory and teams up with him to win over his mother. Yu Shuyun discovers that someone else killed her mother, and this person is interested in her mother's belongings and her son An'an. After various schemes and revelations, they learn they share a common enemy - their mothers were best friends who were both killed for investigating illegal experiments. After joint revenge, Li Huaiyu proposes to Yu Shuyun.