Now that it is clear that Nam Haeng-seon is single, Choi Chi-yeol does not waste time about coming for her. They star dating, his staff returns to work for him, and other moms apologize to her for the misunderstanding. At the same time, the police are closing in on their prime suspect for murders using metal balls.

As Chi-yeol's and Haeng-seon's relationship progresses, Chi-yeol's assistant is starting to show his true self. The police have caught their prime suspect, and it turns out he isn't the killer but the key witness to a murder.

Things are getting worse and Chi-yeol's assistant is clearly trying to harm or eliminate Nam Haeng-seon. While Haeng-seon is unaware of just how serious this all is, her daughter gets kidnapped and then involved in a traffic accident.