Woo-Yeon confronts Ji-Su, accusing her of causing their mother's death after Ji-Su mocks Woo-Yeon's lack of college education and implies she took shortcuts. Woo-Yeon's mother urgently asks Ji-Su if she has seen Woo-Yeon, worried since she lost contact last night. The confrontation escalates as Woo-Yeon recalls how their mother tragically died in a car accident while searching for her, implying Ji-Su’s role in the past tragedy. Ji-Su callously dismisses the blame, intensifying the conflict. The episode ends with Woo-Yeon grappling with her painful family history and Ji-Su’s harsh denial.