When an old friend of Kazuki's shows up Yuuna is a little jealous.  He friend asks him to ask his class is they would help their class in the play that they are doing for the school festival.  Kazuki does and is elected the official go-between for the classes.  As is turns out, Kazuki's class has other plans and leaves the class in the play with a monster to fight.  Kazuki ends up using another magic spell to defeat the monster.