Character Arc
Oh In-kyung is the middle sister, a determined television reporter whose strong moral compass often puts her at odds with the compromises her family makes to survive. Where her older sister In-joo is pragmatic about money, In-kyung is idealistic and driven by a need to expose injustice, a difference that creates both conflict and deep affection between them throughout the series.
As the sisters become entangled with the Park family, In-kyung uses her position in the newsroom to investigate the suspicious deaths and hidden fortune at the heart of the story. Her pursuit of the truth repeatedly places her in danger and forces her to confront powerful figures who would rather see the story buried, testing how far she is willing to go for her principles.
In-kyung's arc balances her professional courage with her loyalty to her sisters, and much of her growth comes from learning when to fight openly and when to protect her family by holding back. Her investigative thread gives the drama its sense of moral stakes and ties the personal story of the sisters to the larger themes of corruption and class.