High School Mystery Club (S2)

On the first day of transfer, can members of the "Mystery Club" be able to leave school safely?

What is the reality of the ghost story that terrorized the "High School Mystery Club"?

A body is found in a reservoir by the school. Police question the mystery club as the witness.

On Sunday, students go to an empty school. And hear a surprising story from the producer.

An unexpected bell sound in a dark, quiet school. Why is the bell ringing, and who is ringing?

Finally, all the mystery puzzles are connected! Then the bell starts ringing all over the school.

All the ugly, dirty secrets behind the Tae-pyeong Girl's High School are ultimately revealed.