Park Hyung Suk has spent all 17 years of his life at the bottom of the food chain. Short, overweight, and unattractive, he is used to being bullied by his classmates and constantly discriminated against for his looks. In an attempt to escape his biggest bully, Lee Tae Sung, he decides to transfer to Seoul's Jae Won High School, a vocational preparatory school notorious for its liberal education system and carefree students.