Welcome to Demon-School, Iruma-kun

Three giant magical beasts appear in Walter Park. Iruma, Asmodeus, and the others band together to face off with these creatures that ruined their fun day! Opera and Ameri fight against the giant rat while Jazz and his group are having some trouble dealing with the giant bull. He as well as other members in his group such as Lead and Camui don't have abilities suited for fighting, but Jazz comes up with a plan to turn things around!

The Balam team is trying to get to safety after saving some kids who weren't able to escape on their own in time. But then Asmodeus and Sabnock decide to fight the carmine dragon without telling anyone else. The two end up competing each other and fight the beast with their familiars. While they're fighting, Asmodeus ends up putting himself in great danger. What will come of the fight against Asmodeus, Sabnock, and the carmine dragon?

The 3 giant magical beasts combine to form an even bigger magical beast. Ronove uses his Charisma in order to draw the beasts attack into a different direction, but... As soon as the magical beast lets out its attack, Iruma and Ali-san step right in front of it! Everyone is panicked at Iruma's rather reckless move. How will this battle end? Meanwhile, Kiriwo manages to escape from prison and it becomes clear as to which demon assisted him.