Hye Ra and her mom visit Woo Jin's house to discuss the engagement. Eui Ju explains to Su Jeong that their relationship cannot remain the same anymore. Hye Ra tries to win over Ha Min's heart. Young Ae overhears Hye Ra and Myung Chul's secret, and Hye Ra tries to convince Young Ae otherwise.

Su Jeong gets a clue about the culprit from the unexpected encounter at the crime scene. Woo Jin feels jealous seeing Eui Ju and Su Jeong together in the hospital. Eui Ju is furious at the poor security of his house, alerting Jae Rim to it. Eui Ju and Su Jeong work together to trap Hye Ra.