Gogyosaeng Ilgi

The drama follows the daily life of the students of Seoul Cultural High School spanning four school terms - such as Yoo Hyun Soo, who transferred from Gangwon province and whose parents live abroad, Kim Sung Min, who dreams of becoming a boxer despite the disapproval of his poor mother, Hwang Jin Woo, whose father wants him to be a doctor, Kang Yoo Mi, an introverted girl who reads novels, and many more students spanning the next few terms, such as Choi Young Hee, Hwang Shin Nae, Shin Bo Mi and Baek Dong Ja.
(Source: Jungjeon-mama at MDL)