Seo Joohyun then changed to Lee Seohyun, a happy and kind hearted girl, received a lot of love from her friends. Live a simple life until one day a fire disaster and change her life.

Kim jongin a.k.a Kai, third son from the most rich family in south korea. He was the son from their father's first wife. Receive lot of love from his family especially his mother. A cute boy but sometimes naughty and a little bit playboy. Has a lot of admirer (because his fame and money)

Kim taehyung a.k.a V, second son from the most rich family in south korea. He was the son from their father's second wife. Also receive a lot of love from his family, hated by first wife. A handsome and silent boy. Has a lot of admirer (because his fame and money)

Kim Soohyun, first son from the most rich family in south korea.  He was the son from their father's first wife. Different from the other, his father and mother hate him a lot. A cool boy and cold hearted. Has a lot of admirer (because his fame and money)

Kim Daegong, their father. a playboy playing around with many girl, He has three wife, after second wife passed away he got married again. love his third son a lot an hate his first son. Love his second wife more than another wife.

Shin Minha, Kim's first wife. Kai and Soohyun's mother, love Kai a lot and hate Soohyun and Taehyung. She want to take over Kim's All property. 

Park Yeri, Kim's second wife. Taehyung's mother, love them all a lot. She was framed by Minha and end up passed away, but nobody know this truth. 

Lee Hyori, Kim's third wife. Pretend to.be nice in front of the children, she want to take over Kim's all property. First wife's rival, always want to frame Minha.