High School Return of a Gangster / I, A Gangster, Became A High School Student · 조폭인 내가 고등학생이 되었습니다 All of Us Are Dead / Our School Now / Now at Our School / School Attack · 지금 우리 학교는 (Jigeum Uri Hakgyoneun)
Juvenile Delinquency / Hope or Dope · 소년비행 Juvenile Delinquency 2 / Boys Flight 2 · 소년비행2 Nobody Knows / No One Knows · 아무도 모른다 / Amudo Moleunda Seventeen-Year-Old's Condition · Condition of Seventeen · Everything and Nothing · 17세의 조건 The Fault Is Not Yours · 어제 일은 모두 괜찮아 Thirty But Seventeen / 30 But 17 / Still 17 · 서른이지만 열일곱입니다 
