Park Chorong, the daughter of Park's family that lived with her younger sister that have 2 years difference with her, Oh Hayoung. Her parents already died when she was still 9 years old and should live with her adopt parents. She left with Hayoung to Busan for hiding from her adopt parents while searching for the killer of her parents that from what she knows, living at Busan. 

Will she found the killer of her parents? 

On other hand, there's Nam Woohyun, the bad son from the Millionare's family who lives without his mother that already passed away and his cruel father that Woohyun thinks just care about his business. His mother already died causing by someone that killed her mother. His father wants to fix his manner and attitude by transfer him to Busan. 

Will his father's succes to fix his manner and his attitude? 

The Characters : Park Chorong, Nam Woohyun, Oh Hayoung, Choi Junhong, others are minor characters