Perfect Marriage Revenge S01E05 - Crossing the Line

The day after the incident at the ferry port, Yi Joo learns that Do Guk is dealing with a panic disorder. Believing that Jung Wook holds crucial information about Do Guk's condition, she arranges a meeting with him, going against Do Guk's explicit request not to meet. Despite her worry for Do Guk, he sternly warns her not to cross the boundaries of their contractual relationship. Seeking comfort, Yi Joo visits her grandfather and encounters an incredible story about her birth.