Taehwa receives a lung transplant from his father, who had committed a hit-and-run the night before the surgery. Riddled with guilt, Taehwa sets out to find the victim’s daughter Miji....

Taehwa receives a lung transplant from his father, who had committed a hit-and-run the night before the surgery. Riddled with guilt, Taehwa sets out to find the victim’s daughter Miji....