Why not? Why couldn't they be together? Was it fear? Or was it simply cause the feelings weren't mutual? Why wasn't life being fair? This is a story of a young man named Jung Yong Hwa and a young woman named, Park Shin Hye, who go through a life filled with hardships, heartbreak, love, happiness, sadness, hatred, anger and more. They're very close friends. Their friendship is what others would call, 'Perfect'. But what if one or both of the