Our Blooming Youth / Youth, Climb the Barrier / Sleep Memo / Sleeping Rock / The Golden Hairpin / Youth / Talk to the Moon / Youth Climbing Over the Wall · 청춘월담 / 잠중록 / 청춘이여 월담하라 All of Us Are Dead / Our School Now / Now at Our School / School Attack · 지금 우리 학교는 (Jigeum Uri Hakgyoneun)
How to Buy a Friend / Friend Contract / Friendship Contract · 계약우정 Are You Human Too? · 너도 인간이니 Bok-Soo's Back / Revenge Returns / Revenge is Back / Revenge Has Returned / My Strange Hero · 복수가 돌아왔다 Last Minute Romance · 막판로맨스 Protect The Boss / The Boss Has Changed / The Last Secretary / Protect My Boss · 보스를 지켜라 
