Steve, an American physician, arrives at Pohang airport with his 13-year-old daughter Barbie. Steve is adopting Soon-yong for a heart transplant to save his younger daughter who has heart disease. Mangtak, Soon-yong’s uncle, is selling his niece well aware that she’s going to die. But Soon-ja, who believes in the American dream and has no idea of the truth, uses every trick in the book to be adopted in place of her sister.