Jung-suh's jealous stepsister who orchestrates a car accident to fake Jung-suh's death and steal Song-joo's affections for family wealth. She raises Jung-suh in hiding under a new identity. Later arrested for her crimes, she eventually experiences remorse and apologizes to Jung-suh before the tragic conclusion.
Hostile stepsister relationship marked by jealousy, betrayal, and life-threatening antagonism.
Transactional romantic arrangement used to manage family expectations and Yu Ri's emotional state.
Codependent maternal alliance built on shared jealousy and mutual manipulation of family dynamics.
Explore the full interactive character relationship map of Stairway to Heaven