The Mysterious Class


The Mysterious Class is a 2021 South Korean web series featuring an ensemble cast consisting of the members of boy band Treasure—Choi Hyun-suk, Park Ji-hoon, Yoshinori Kanemoto, Kim Jun-kyu, Yoon Jae-hyuk, Asahi Hamada, Kim Do-young, Haruto Watanabe, Park Jeong-woo, So Jung-hwan, Mashiho Takata, and Bang Ye-dam. Its plot centers on a group of 12th grade students in a boys' school who try to solve the mystery of their class' resident ghost.
The series aired for free viewing every Friday 22:00 KST on the band's official YouTube channel from 12 November to 31 December 2021. Short clips containing post-credits scenes for each episode were also uploaded for paid subscription in the band's Weverse account a day after its corresponding episode's airing date. It served as Treasure's first full-fledge endeavor in acting after the band made its acting debut through the short film It's Okay, That's Friendship that was broadcast on 5 March 2021 as the 36th episode of their variety web series Treasure Map.
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Synopsis

In Boseok Boys High School, the students of Grade 12 – Class 4 are trying to come into terms with the possibility of a ghost lurking in their homeroom after discovering that their class of 21 students was supposed to have only 20. A series of spooky events drove the students to suspect each other while trying to solve the mystery of their class' resident ghost, who might simply be posing as one of their classmates.

Cast

Main

The roles of the main characters of the series are played by members of the boy band Treasure, including their two former co-members:

Supporting

Others

  • Goo Shi-yeon as Jeong-woo's mother
  • Goo Jae-yeon as Yoshinori's grandmother, a ''mudang''

Episodes

The following table contains the episodes of the series:

Soundtrack

The soundtrack for The Mysterious Class consists of musical score composed by Baek Jong-sung et al. and the following two theme songs. Both of these theme songs are performed by Treasure and were released on 15 February 2022 through the CD version of the band's first extended play The Second Step: Chapter One.
A Christmas version of "BFF " was released earlier on 24 December 2021 through the band's official social media accounts.