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...
Because their job is to be friendly to students.
Porque su trabajo es ser 
amistosas con los estudiantes.
Porque su trabajo es 
llevarse bien con los estudiantes.
Porque o trabalho delas é ser
 amigáveis com os alunos.