The story is set in a high school in South Korea, in the spring of 1978. Hyun Soo is a student who transfered to JungMoon High School. JungMoon High School is militaristic school notorious for severe corporal punishment by teachers and power struggles between school gangs. One day, he plays basketball with his classmates and brings his team to victory, which allow him to become chumy with Woo Sik, a kingpin of the school.