Lured by the high pay rate, Changsu takes the job of a highschool security night shift. Strange things happen when he is left alone late at night… but once he starts following the night security procedure manual, mysteries are solved.
Lured by the high pay rate, Changsu takes the job of a highschool security night shift. Strange things happen when he is left alone late at night… but once he starts following the night security procedure manual, mysteries are solved.
