On Christmas Day, 14 years ago, Jun-Yeong and Eun-Hyeok became step-brothers after their parents remarried. However, their parents soon passed away in a car accident and Eun-Hyeok became the only person Jun-Yeong could depend on. To Jun-Yeong, Eun-Hyeok was the perfect guardian as well as savior. But upon a certain incident, Eun-Hyeok's existence...