Revered family medicine doctor and associate director at Family Love Hospital. After discovering her husband's affair, she meticulously plans revenge, ruins his finances, and exposes his infidelity. She later focuses on rebuilding her life and restoring her relationship with her son.
Their post-affair relationship is driven by legal, financial, emotional, and parental conflict.
They battle over divorce papers and custody of Jun-yeong, while Seon-u later retaliates against Tae-o's actions.
Their parent-child bond is strained by the divorce, school trouble, disappearance, and the consequences of Seon-u's choices.
Seon-u and Tae-o fight over custody of Jun-yeong, and Seon-u later tries to restore their relationship after the divorce and revenge campaign.
The two women become linked through Tae-o's affair and oppose each other across the collapse of his first marriage.
Da-gyeong's visit to Seon-u's hospital worsens the crisis, and Seon-u exposes the affair to Da-gyeong's parents.
Seon-u deliberately approaches In-gyu as part of her response to the betrayals surrounding her.
After feeling betrayed, Seon-u seeks retaliation by paying In-gyu a visit.
Yun-gi acts as one of the people mobilized by Seon-u's disappearance.
When Seon-u goes missing, Yun-gi and Tae-o rush to find her.
Explore the full interactive character relationship map of The World of the Married