- Kim Moo-yul (Na Hwa-jin)
- Lee Sung-min (Choi Kang-seok)
- Jin Ki-joo (Im Han-rim)
- P.O (Bong Geun-dae)
- Kim Jong-soo (Hwang Gi-tae)
- Ahn Ha-young (Choi Ga-yun)
- Lee Bong-joon (Cho Gyu-cheol)
Teach You a Lesson — S1E5
Episode: Episode 5
Air Date: 2026-06-05
Runtime: 66 min
Overview
When an elementary school teacher's spirit wears down under pressure, Hwa-jin steps in to be her substitute — turning the tables to solve the case.