Tae Woon tries to fix things with Eun Ho. With new standing, the principal makes his move on catching X once and for all.
Kim Se-jeong
Ra Eun-Ho
Kim Jung-hyun
Hyun Tae-Woon
Jang Dong-yoon
Song Dae-Whee
Seol In-a
Hong Nam-Joo
Rowoon
Kang Hyun-Il
Z.Hera
Yoo Bit-Na
Han Seon-hwa
Han Soo-Ji
Han Joo-wan
Sim Kang-Myung
Park Se-wan
Oh Sa-Rang
Ha Seung-lee
Hwang Young-Gun
Kim Hee-chan
Kim Hee-Chan
Seo Ji-hoon
Yoon Kyung-Woo
Hong Kyung
Won Byung-Goo
Ahn Seung-gyun
Ahn Jung-il
Kim Si-eun
Lee Myung-jin
Kim Song
Kim Heung-soo
Choi Sung-min