After a tragic car accident, 18-year-old Kang Gyung Joon discovers that his spirit has been transported to the body of 30-year-old Seo Yoon Jae. Yoon Jae is a successful doctor who is engaged to high school teacher Gil Da Ran. But Da Ran just so happens to be Gyung Joon’s teacher. What is a boy to do when he discovers that he has become his own teacher’s fiancé by a freak of nature? Will he be able to return to his own normal life or is he doomed to live out the older man’s instead?

Kim Yo Han is a psychiatrist who gets involved in a serial murder when his car broke down on Christmas Eve during a sudden storm and he is forced to take shelter at a private high school. Seven students and a teacher are also there over the winter break, but they are gradually murdered one by one as they receive letters from a killer who wants revenge for the death of his mother and sister.

Adapted from the Manhwa of the same name, "Kid Gang" is about the once most powerful crime organization in Korea. The 'Bloody Tuesday Gang' was entrusted with taking care of a baby by thier former leader six months before their parole ended. Ku Bong Son Chang Min was the leader with two other members Hong Lu Lee Jong Soo and Kal Nal Lee Ki Woo. This comedy focused on the task faced by the members who have to take care of the baby..