Cha Moo-hyuk was adopted by an Australian family, but is abused and leaves home at an early age.  Growing up on the streets, he meets all sorts of people until one day he comes upon Song Eun-chae.  Eun-chae is the coordinator for Choi Yune, a famous singer in Korea whom she secretly loves.   Her fateful encounter with Moo-hyuk ends up affecting not only her life but that of her precious Yune's as well. 

Moo-hyuk's path takes him to Korea, on a road that leads to revenge.  He's filled with anger and hurt about his birth mother, but also feels love and happiness with someone he didn't expect to love.  Although he wreaks havoc on the lives of those around him, he wishes with all his heart someone would stop him...

A sad drama, but one that stands out from others.  It is beautifully written and pulls at the heart.