Season 1
From lecturing, meetings with students' parents, self-defense to first-aid treatment, Ma Yeo-jin masters everything and strives for perfection in every aspect. She joins Sandeul Elementary School as a homeroom teacher of Class 6-3 after her two-year hiatus. With a poker face, Yeo-jin teaches her rebellious students using an unorthodox and unique method, and she tells them the inconvenient truth.
Episodes
1 에피소드 1 Jun 12, 2013 
2 에피소드 2 Jun 13, 2013 
3 에피소드 3 Jun 19, 2013 
4 에피소드 4 Jun 20, 2013 
5 에피소드 5 Jun 26, 2013 
6 에피소드 6 Jun 27, 2013 
7 에피소드 7 Jul 3, 2013 
8 에피소드 8 Jul 4, 2013 
9 에피소드 9 Jul 10, 2013 
10 에피소드 10 Jul 11, 2013 
11 에피소드 11 Jul 17, 2013 
12 에피소드 12 Jul 18, 2013 
13 에피소드 13 Jul 24, 2013 
14 에피소드 14 Jul 25, 2013 
15 에피소드 15 Jul 31, 2013 
16 에피소드 16 Aug 1, 2013