One Fine Day (2006) Korean Drama

After Seo Han Eul lost her mother in a fire, she was later adopted by a wealthy family and experienced a life of many twists and turns. Seo Gun’s father had married an unwed mother, thus making Han Eul his sister in the eyes of the law. After their parents passed away, Han Eul was adopted by a wealthy chairman of a large organization who has also become a gangster. Upon using Han Eul to extort money, Seo Gun and Han Eul slowly fall in love with each other.