Welcome to Demon School! Iruma-kun

Due to very bizarre circumstances, the human boy, Suzuki Iruma, ends up in the netherworld. He is keeping the fact that he is human a secret and attends the Demon School Babyls. Because he is human, he cannot use magic so he had been using the Gluttonous Feeder Ring to get by in school. But then one day, the ring started to speak! Why, though? Iruma then meets the incarnation of the ring who calls themselves Alicred, AKA Ali-san.

Someone had done something to change Ameris personality! Shes usually confident and stern, but now, shes now meek and dainty and the student council cant hide the fact that theyre not sure how to handle the situation. While all this confusion is going on, Ronove Romiere, the president of the Disciplinary Battler comes to try to steal Ameris position. He proposes a dissolution election against the student council. Who is behind the changes in Ameri? What will be the result of the election?

After finishing his time at with the student council, Iruma finally goes back home. Sullivan is ecstatic that Iruma came home and throws him a welcome home party. He tells Iruma to invite Asmodeus and Clara and they all have a fun time. Sullivan ends up getting last in a dance competition they have and he then conducts a Dark Parade so he can make himself look cool to Iruma...

The Misfit Class must gather approved permission slips from all of the faculty members within three days to move to the Royal One. Iruma is currently going through is evil cycle and figures out a plan to have the rest of the Misfit Class members use their abilities to get approvals from the faculty members that might be less likely to say yes to their transfer. The first one to use their ability is Andro M. Jazz! Will Irumas plan turn out to be a success?

The students are about to welcome their version of summer vacation! The Misfit Class is super excited but then, theyre reminded that if they dont do well on the end of terminus exams, theyll have to stay for supplementary classes during their break. To avoid that from happening, they all want to avoid failing. But Iruma is a human and has very little knowledge concerning netherworld wisdom. To avoid failing, Iruma works with Asmodeus and Clara to study!

The end-of-terminus exams are finally upon them! Will Iruma and the rest of the Misfit Class be able to avoid failing and having to take supplementary classes? Meanwhile, Ameri is excited for her usual reading session with Iruma when shes suddenly visited by Clara. Clara then drags Ameri off to meet with Elizabetta and Keroli and they have some girls time. They start talking about relationships and things start to oddly heat up...

The Misfit Class finally gets to go to Walter Park on their vacation. Kalego, Balam, and Opera go as their bodyguards and chaperones while Ameri thinks Iruma is asking her on a date and also joins in. They split up into three teams and see which team can have the most fun at the amusement park!

The Walter Park staff that Iruma and his friends had encountered were actually the terrorist group, the Six Fingers, who planned to destroy the park. The Six Fingers set three giant magical beasts loose on the park. The whole park is filled with fear and chaos. Jazz and the others on the Kalego team faces off with one of the beasts for some hands-on training. Meanwhile, Kiriwos plan to escape from the prison below the park seems to be going smoothly.

The Balam team is trying to get to safety after saving some kids who werent 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 theyre fighting, Asmodeus ends up putting himself in great danger. What will come of the fight against Asmodeus, Sabnock, and the carmine dragon?

Iruma couldnt get home after being named the hero who saved Walter Park and being hounded by the press, which leads to him and Asmodeus spending the night at Claras house. Claras house is located in Hubbub Forest, which is also home to various strange plants and creatures. Claras family welcomes them with open arms and then they all go into the forest to find some ingredients for their meal. According to Mommy, the ultimate ingredient resides in Hubbub Forest...

Iruma and Lead end up being trained by Robins relative, Barbatos Bachiko. Bachiko is very skilled and was personally asked by Sullivan to assist Robin with tutoring the kids. They were supposed to have a rather hard training schedule... but all Bachiko asks them to do is random errands. Lead has had enough of that and goes back to Robin. Iruma is left frustrated and alone. He learns that Asmodeus and Clara have been training and decides to take matters into his own hands!

The final battle for the Babyls first-years, the Harvest Festival, finally begins. It is a rank-advancement exam in the form of a survival game that takes place over four days. They must hunt the various magical beasts and plants that exist in the jungle for points, and the one who comes out with the most points wins. The Misfit Class just finished some rigorous training, and they end up back in the groups they ended up training with, butting heads with everyone else. Onward to the jungle filled with dangerous magical beasts!

"Can We Make 100 Friends?": The owner of the amazing castle in the middle of the jungle was none other than Picero! Picero and Goemon were fighting in the Harvest Festival and had this castle to come back to. A busybody and a demon who marches to the beat of his own drum... This unlikely pair apparently have known each other for a while... "The Students Im Proud Of" Meanwhile, in the tutors tent, there was a party going on. The tutors were all watching their students performances during the Harvest Festival... and somewhere down the line, a rivalry was building up between the tutors.

Day 2 of the Harvest Festival, and the Iruma and Lead team were still at zero points, so they decide to try to get the Legendary Leaf to turn things around. With that in mind, they go visit Camui. Once they find him, they also encounter a horde of magical beasts and a little kingdom that had been established. The two are captured and suddenly brought in front of the queen of the kingdom, which just so happened to be Keroli?! Meanwhile, Ameri was thinking back about her time at the Harvest Festival, as she was watching Irumas performance from the broadcast tent.

Iruma is trying to get back to the surface after exploring the underground labyrinth with Naphura. On their way up, he runs into his parents that shouldnt be in the netherworld. Theyre actually an illusion created by Orobass magic. Iruma is overwhelmed by the illusion and falls off a cliff. Down below, Iruma continues to see nightmarish illusions. Will he be able to overcome his fears?!

The battle between Kerolis Magical Beast Kingdom and Picero and Goemons squad continues. Elizabetta also joins the Magical Beast Kingdom and charms the enemy male students on the frontline. Meanwhile, Iruma and Lead also arrive at the Magical Beast Kingdom. After having Camui interpret what Naphula was saying, they find out that it was Orobas who had been attacking the members of the Misfit Class. Orobas seems determined to win, no matter what. Clara is now in danger, as she wandered off into the jungle by herself.