Seasons and episodes
1Season 1 Jan. 29, 2021
1 - 1
1 - 2Five Transfer Students Go To The Mystery Club Jan. 29, 2021
1 - 3The Mystery Club Hideout Feb. 05, 2021
1 - 4The Curious Case Of The Cafeteria Feb. 05, 2021
1 - 5The Question Number Five Feb. 12, 2021
1 - 6The Secret Of Mr. Dokgo Feb. 12, 2021
1 - 7Suicide At The School Feb. 19, 2021
1 - 8Hee Sun And The Green Pills Feb. 19, 2021
1 - 9In Hye’s New Posts Feb. 26, 2021
1 - 10The Past Of In Hye And Ae Ri Feb. 26, 2021
1 - 11In Hye And Ae Ri’s Friendship Mar. 05, 2021
1 - 12The Suspicious Teacher Mar. 05, 2021
1 - 13It’s Mr. Dokgo Mar. 12, 2021
1 - 14Rooms with Numbers Mar. 12, 2021
1 - 15The Enrichment Study Building Mar. 19, 2021
1 - 16Series Of Switches And Jolli-G Mar. 19, 2021
2Season 2 Dec. 31, 2021
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