It's the season for student teachers at Mai High.  Keima's class gets Miss Nagase, a cheerful pro wrestling fan who has great hopes and dreams about becoming a teacher.
However, her attention is immediately drawn to a problem child who plays games during class (...Keima, of course).
The other teachers have already given up on Keima's attitude, but Jun is inspired to save him...
The teacher genre is already considered tedious,
El género de las profesoras 
ya se considera tedioso
El género de las profesoras 
ya se considera aburrido
O gênero de professoras já é 
considerado entediante,