God of Study (TV series)

Kang Suk Ho is an ordinary lawyer who decides to take up a job at the nearby high school. After seeing the conditions of the school and the poor grades all the students have, Suk Ho decides to create a special class promising admission to the most prestigious college in Korea, "Chun- Ha-Dae University." Five of the most laziest students [Hwang Baek Hyun, Gil Pul Ip, Na Hyun Jung, Hong Chan Doo, and Oh Bong Goo.], join the class to in order to provethat they can do it with hard work and dedication. - IMDb