A school nurse with an unusual supernatural gift must protect high school students from monsters only she can see.
EPISODE 1
Episode 1
Ahn Eun-young enters the forbidden school basement as Hong In-pyo trails along; they team up after a dark secret shakes up the school.
EPISODE 2
Episode 2
After the bond between two troublemakers catches Eun-young's eye, In-pyo proposes unconventional ideas to split them up.
EPISODE 3
Episode 3
Eun-young and In-pyo get knotty; with Mackenzie's support, a student settles a score with the basketball team.
EPISODE 4
Episode 4
Baek Hye-min introduces herself to Eun-young as a transfer student and suggests a solution to the mite infestation.
EPISODE 5
Episode 5
Eun-young reunites with an old friend; a sympathetic Eun-young seeks out ways to help Hye-min outlive her fate.
EPISODE 6
Episode 6
Evil floods the school with negative energy; Eun-young reaches her limit and makes a tough decision with In-pyo by her side.
Jung Yu-mi
Nam Joo-hyuk
Moon So-ri
Yu Tae-oh
Lee Joo-young
Junyoung Choi
Hyun Woo-seok
Lee Gyeong-mi
Kim Hyun-jung
Shin Yeon-ju
Chung Serang
