I'm Sorry Kang Nam Goo

Jung Mo-A (Kim Min-Seo) marries Park Do-Hoon (Lee In). They both grew up at the same orphanage. Park Do-Hoon learns that he is the son from a wealthy family. He dumps Jung Mo-A and marries Cha Young-Hwa (Na Ya). Her father is a powerful politician.

Meanwhile, Jung Mo-A becomes involved with Kang Nam-Goo (Park Sun-Ho). He comes from a poor financial background, but he is smart and has a warm heart.