Agents' Undercovered Love - Episode 18

During a mission, Agent Noah had the intelligence hidden in jewelry stolen by Agent Olivia, who was disguised as a blonde, blue-eyed high-end escort. The two also had a one-night stand. Seven years later, they meet again without recognizing each other. They get married to maintain their covers as agents, only to fall in love later. Eventually, Noah discovers that Olivia's seven-year-old daughter Lucy is actually his biological child.