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...
I-I'm Jun Nagase.
So-soy Jun Nagase.
So-Soy Jun Nagase.
E-Eu sou Nagase Jun.