Se-yeon, an elementary school student who once cast her best friend into a coma through necromancy, attempts the forbidden ritual again at an abandoned training center after transferring to a new school.
Amidst the bizarre hallucinations and curses engulfing the center, children fall victim one by one, and Se-yeon confronts the true identity of the evil spirit hidden behind all the tragedy.
The truth about the survivor, Se-yeon, is ultimately ignored, leading her to choose a life of isolation, never getting involved with anyone…
