In an all-boys school, a class of 12th grade students are in disbelief after doing a seance that revealed the presence of a ghost lurking among them. Soon their doubt turns into suspicion as the class runs into eerie events that compel them to deduce the ghost's identity.
Haruto
Kim Do Young
Choi Hyun Suk
Bang Ye-dam
Asahi
So Jung Hwan
Yoon Jae Hyuk
Yoshi
Park Jeong Woo
Kim Jun Kyu
Park Ji-hoon
Mashiho
Jang Tae-hoon
Lee Kyung-min
Chae Hee-soo
Seo Ye-ri
Kim Hong-boo
Han Myung-chul
Goo Si-yeon
Goo Jae-yeon