Yura, who lost her mother at a young age, was living happily with her father, who runs a subcontracting company, and her older brother, a young professional boxer, though they were not wealthy. One day, news came that her brother had gotten into a fight with local delinquents. Her brother had been provoked unfairly and ended up hitting them. Yura's father rushed to the delinquents' hangout spot with Yura, where they were told, "If you consider your brother's future as a professional boxer, pay the settlement money right now. Otherwise, we'll make it public!" Her father hurriedly left to gather the settlement money, but Yura was left behind as a hostage…
