“There are 21 students in our class.” “What are you talking about… Your class had 20 students right from the start..!!” Peaceful class 4 of the 3rd grade of Treasure High. Friendship and a mystery thriller while doubting each other. Will they be able to find the ghost?

Watch The Mysterious Class (2021) English Subtitles (Korean Drama)

Episode 1Episode 2Episode 3
Episode 4Episode 5Episode 6
Episode 7Episode 8