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...
as we hadn't run into any loose souls for a while...
ya que no hubo almas perdidas en un tiempo...
porque no habíamos tenido almas perdidas en un tiempo...
já que não tínhamos encontrado 
almas caídas por um tempo.