Overview

Gaeun works as a cleaner at the Institute of Science and Technology’s Unit facility, and she’s now been assigned to take care of the hall known as District D after a former employee quit for unknown reasons. During her break, one of her coworkers has mentioned there’s something strange lurking in that particular area. Whatever it is out there, hopefully she’ll be ready for what lies ahead.

Top Cast

Lee Hwa-young

D

Do Hye-seon