E1 - Five Transfer Students Arrive At Saera Girls’ High School

Aired: January 29, 2021

E2 - Five Transfer Students Go To The Mystery Club

Aired: January 29, 2021

E3 - The Mystery Club Hideout

Aired: February 05, 2021

E4 - The Curious Case Of The Cafeteria

Aired: February 05, 2021

E5 - The Question Number Five

Aired: February 12, 2021

E6 - The Secret Of Mr. Dokgo

Aired: February 12, 2021

E7 - Suicide At The School

Aired: February 19, 2021

E8 - Hee Sun And The Green Pills

Aired: February 19, 2021

E9 - In Hye’s New Posts

Aired: February 26, 2021

E10 - The Past Of In Hye And Ae Ri

Aired: February 26, 2021

E11 - In Hye And Ae Ri’s Friendship

Aired: March 05, 2021

E12 - The Suspicious Teacher

Aired: March 05, 2021

E13 - It’s Mr. Dokgo

Aired: March 12, 2021

E14 - Rooms with Numbers

Aired: March 12, 2021

E15 - The Enrichment Study Building

Aired: March 19, 2021

E16 - Series Of Switches And Jolli-G

Aired: March 19, 2021