The WORST episodes of Welcome to Demon School! Iruma-kun

Every episode of Welcome to Demon School! Iruma-kun ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Welcome to Demon School! Iruma-kun!

Fourteen-year-old Suzuki Iruma has just been abandoned and sold to a demon by his irresponsible parents! Surprisingly, the next thing he knows he's living with the demon who has adopted him as his new grandson, and has been transferred into a school in the demon world where his new "demon" grandfather works as the principal. Thus begins the cowardly Iruma-kun's extraordinary school life among the otherworldly as he faces his true self, takes on challenges, and rises to become someone great.

Last Updated: 8/31/2024Network: NHKStatus: Ended
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Lead's Distress
star
6.08
25 votes

#1 - Lead's Distress

Season 3 - Episode 14 - Aired 1/14/2023

Iruma is safely reunited with Lead. But apparently, Lead had the Vase of Endings he had successfully obtained stolen by Elizabetta. However, it appears as though the one who took the vase was not Elizabetta, but someone else. Lead uses his bloodline ability, Controller, that had been strengthened through Robin's training and tries to track Elizabetta down. What he ended up hearing were the voices of Elizabetta, Clara, and Keroli in a hot spring?!

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Can We Make A Hundred Friends? / The Students I'm Proud Of
star
6.39
31 votes

#2 - Can We Make A Hundred Friends? / The Students I'm Proud Of

Season 3 - Episode 8 - Aired 11/26/2022

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 I'm 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.

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Kiriwo's Secret Room
star
6.52
56 votes

#3 - Kiriwo's Secret Room

Season 1 - Episode 15 - Aired 1/11/2020

Iruma and the others continue to prepare for the Battler Party. The launchpad for the fireworks is almost complete, so Iruma goes to look for Kiriwo. Suddenly, Iruma’s ring starts dragging him and is led all over Babyls until he finds a mysterious hidden room. Kiriwo was behind those doors planning a certain project. We also find out exactly who Kiriwo had been talking to on the phone. What does Iruma find in the mysterious room?

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Sparkling Shock
star
6.62
50 votes

#4 - Sparkling Shock

Season 1 - Episode 22 - Aired 2/29/2020

Kuromu’s true identity happened to be Crocell Keroli from the Misfit Class! The more Keroli talked to Iruma, the more she became jealous about how popular he is, and she ends up collapsing. There was no way that Keroli could continue with the concert, but she had a reason she could not cancel the concert. In order to somehow still make the concert at Makubari Dome a success, Iruma and his friends do something rather surprising!

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Welcome Back
star
6.63
24 votes

#5 - Welcome Back

Season 3 - Episode 18 - Aired 2/11/2023

The Legend Leaf exploded in the sky and bloomed into beautiful flower petals. While everyone's in a celebrating mood, the award ceremony begins. Those who did excellently in the event, those who ended up forfeiting... How did all of the members of the Misfit Class do? Were they all able to reach the rank they needed to?! All of the mentors also are reunited with their students. How will the mentors respond to their students' performances during the Harvest Festival?

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The Battlers' Presentation
star
6.65
54 votes

#6 - The Battlers' Presentation

Season 1 - Episode 14 - Aired 1/4/2020

Sullivan is apprehended by the Demon Border Patrol on suspicions of unlawfully entering the human world. He still hopes to somehow make it to the Battler Party to see his precious Iruma-kun... Meanwhile, Iruma had no idea what was going on with Sullivan and was preparing for his presentation for the Battler Party. After going through several ideas, they decide to create things called fireworks that are supposedly from the human world and they spend the night at school to create them. And so, began the fun sleepover for the MagiApp Battler kids.

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Run, Iruma, to Kiriwo!
star
6.69
51 votes

#7 - Run, Iruma, to Kiriwo!

Season 1 - Episode 17 - Aired 1/25/2020

Suddenly, all of Babyls is surrounded by invisible walls! On top of that, they are unable to get a hold of the outside and there are invisible walls that popped up all over the school. Amidst all the chaos, Kalego and the other teachers have the students take shelter in the central plaza. Since Kiriwo is missing, Iruma decides to go look for him with the help of Asmodeus and Clara. Will Iruma be able to find Kiriwo?

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The Iruma I Know
star
6.71
24 votes

#8 - The Iruma I Know

Season 3 - Episode 10 - Aired 12/10/2022

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 Iruma's performance from the broadcast tent.

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Party Eve
star
6.72
50 votes

#9 - Party Eve

Season 1 - Episode 16 - Aired 1/18/2020

Kiriwo’s dream: To make a world where all demons would be equal, even if they didn’t have that much magical powers. Iruma completely agreed with this statement, so he proposed they shoot for the grand prize at the Battler Party. If they’re able to get the grand prize, everyone, including high-ranking demons, would see how hard Kiriwo and the Magical Apparatus Battler worked. All the Battlers are getting their presentations ready for the Battler Party on the day of the Party Eve. But suddenly, the fireworks shell that Iruma and others prepared suddenly goes missing...

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Iruma's Decision and Hard Work
star
6.74
54 votes

#10 - Iruma's Decision and Hard Work

Season 1 - Episode 9 - Aired 11/30/2019

After making a promise with Ameri, Iruma sets out to try to move up a rank. Iruma finds out that there is a promotion exam in a week where they would play execution cannonball, and he also finds out it’s rather similar to a game they play in the human world. Iruma decides to train after he realizes he’s far weaker than anyone else in his class. Iruma decides that he’s not going to use magic, so he starts an intense training regimen with Opera. What does Iruma gain at the end of all this training?

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The Rookie Hunt!!
star
6.77
53 votes

#11 - The Rookie Hunt!!

Season 1 - Episode 12 - Aired 12/21/2019

The Battlers’ recruiting operation, the Rookie Hunt, had begun. The seniors all come out to try to find worthy first-years to join their groups. What takes place is an immense battle! Iruma and his friends somehow make it through, but then decide to check out the various Battlers on campus. But then suddenly, Iruma’s ring goes berserk, causing him to run into a senior...

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Glorious Award / Treatment of Humans
star
6.81
48 votes

#12 - Glorious Award / Treatment of Humans

Season 1 - Episode 20 - Aired 2/15/2020

Part A: The ceremonies to give out the prizes for the Battler Party has now begun. Iruma and the other members of the MagiApp Battler hope to get the Grand Prize! That was also what Iruma had promised Kiriwo. Who will the prize go to? Part B: Iruma happens to stand out more after the incident with the fireworks. The head of the Demon Border Patrol, Azazel Henri, begins to suspect that Iruma may actually be human and he visits Babyls. Wait, this all seems rather familiar...

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Dem-dol Kuromu-chan!
star
6.87
47 votes

#13 - Dem-dol Kuromu-chan!

Season 1 - Episode 21 - Aired 2/22/2020

One of the most popular idols in the netherworld, Kuromu-chan, holds an all-day concert at the Makubari Dome. Dem-dols have the important job of helping demons release the stress and evil desires they feel during their Evil Cycle. Kuromu was considered a shining new star in the field, and her tickets would usually sell out in one day. But she actually had a secret that she couldn’t tell anyone... Iruma just happened to be lucky enough to get tickets for her concert and takes Asmodeus and Clara with him!

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The Instructors' Banquet
star
6.90
21 votes

#14 - The Instructors' Banquet

Season 3 - Episode 19 - Aired 2/18/2023

The night that the Harvest Festival ended, the instructors of Babyls got together at a pub to celebrate. Kalego usually never goes to these outings, but Balam catches him and forces him to go. Robin is getting ahead of himself as usual and the group even talks about Kalego's days as a newbie instructor. What is the most important thing about being an instructor at Babyls? We also get to see what happened to Ocho after he escaped into the jungle after the Harvest Festival.

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Studying in the Netherworld
star
6.92
39 votes

#15 - Studying in the Netherworld

Season 2 - Episode 9 - Aired 6/12/2021

The students are about to welcome their version of summer vacation! The Misfit Class is super excited but then, they're reminded that if they don't do well on the end of terminus exams, they'll 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!

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Head Over Heels for Clara
star
6.93
56 votes

#16 - Head Over Heels for Clara

Season 1 - Episode 8 - Aired 11/23/2019

Clara isn’t amused at the fact that Ameri keeps summoning Iruma. To try to get Iruma to pay attention to her again, Clara starts to take succubus charming lessons with the succubus teacher Raim. Clara wants to get Iruma’s attention again, but apparently her sexiness is almost nonexistent. Even then, Clara sets out to charm Iruma. Will she be able to win Iruma over?

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Maiden Devil
star
6.94
34 votes

#17 - Maiden Devil

Season 2 - Episode 3 - Aired 5/1/2021

Someone had done something to change Ameri's personality! She's usually confident and stern, but now, she's now meek and dainty and the student council can't hide the fact that they're 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 Ameri's 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?

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Fierce Battle, Execution Cannonball!!
star
6.94
53 votes

#18 - Fierce Battle, Execution Cannonball!!

Season 1 - Episode 10 - Aired 12/7/2019

The day of the rank promotion test involving execution cannonball had arrived. Iruma is ready for the match, but then ends up on different teams with Asmodeus. Despite that, the game continues with all his other classmates using their various forms of magic to play the game. Will Iruma be able to show off the results of his training?! And who will win? Iruma or Asmodeus?

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The Dorodoro Brothers' Provocation
star
6.96
27 votes

#19 - The Dorodoro Brothers' Provocation

Season 3 - Episode 9 - Aired 12/3/2022

The Asmodeus and Sabnock pair and the Dorodoro Brothers were in the middle of hunting down a Hundred Flapple. The Dorodoro Brothers wanted to take back their master from Asmodeus and Sabro because they believed that they were their master's number one pupils. Both Asmodeus and Sabro end up falling for the brothers' provocation, but they didn't realize that the provocation itself had to do with the brothers' abilities. Asmodeus fights back by unleashing his evil cycle just the way Balam had taught him to. Also, what exactly is this history between the Dorodoro Brothers and their master?

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The Magical Apparatus Battler
star
6.98
56 votes

#20 - The Magical Apparatus Battler

Season 1 - Episode 13 - Aired 12/28/2019

Iruma runs into his senior Amy Kiriwo in front of the Magical Apparatus Battler again. The Magical Apparatus Battler room is filled with all kinds of strange gadgets. There, Iruma hears about Kiriwo’s dreams. Babyls is about to hold their annual Battler Party where all the new students get to promote the Battler they joined. Sullivan looks forward to seeing Iruma-kun but while he’s at the Thirteens’ Dinner...

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The One Who Wants to Be Demon King
star
7.00
62 votes

#21 - The One Who Wants to Be Demon King

Season 1 - Episode 5 - Aired 11/2/2019

The Misfit Class is in the middle of a flying race in order to determine their ranks. Since Iruma is human, he can’t fly, so he’s riding on the back of the giant baby demon bird, but it seems to be flying off course. Meanwhile, Sabnock decides to go through the treacherous Cutthroat Valley and ends up having to battle it out with the Guardian there. Sabnock is obsessed with becoming the next Demon King, but why is he so obsessed? Are Iruma and Sabnock going to be able to make it out of Cutthroat Valley alive?

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Clara's Toy Box / A Night Filled With Screams
star
7.03
31 votes

#22 - Clara's Toy Box / A Night Filled With Screams

Season 3 - Episode 7 - Aired 11/19/2022

Clara's Toy Box: Iruma gets sucked into Clara's kigurumi and then is trapped inside the strange and fantastical world that's inside! Iruma turns into a child inside and out and he ends up having a lot of fun with Clara. A Night Filled With Screams: Students start forfeiting left and right due to the harsh conditions in the jungle the first night of the Harvest Festival. Meanwhile, Konatsu, Haruno, Azuki, and Dosanko manage to find a certain location and...

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Iruma and Clara / Demon Friends
star
7.05
65 votes

#23 - Iruma and Clara / Demon Friends

Season 1 - Episode 3 - Aired 10/19/2019

Part A: Iruma and Asmodeus encounter a rather strange girl named Valac Clara. Because of her friendly yet strange demeanor, some students seem to be taking advantage of her... Part B: Iruma had become closer to both Asmodeus and Clara. They started picking him up from his house to walk to school together and Iruma was still trying to get used to demon life. One day at lunch, some kids try to pick on Iruma, but...

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The End of the Harvest Festival
star
7.05
21 votes

#24 - The End of the Harvest Festival

Season 3 - Episode 16 - Aired 1/28/2023

Asmodeus protects Iruma and Clara from Orobas, but he is disqualified from the competition because he directly attacked Orobas. As they watch Asmodeus walk off, they realize that Orobas has disappeared. Ocho had taken Orobas and fled. If Iruma and his friends don't retrieve the Vase of Endings, they can't make the Legendary Leaf bloom. But they have no idea where to even start. It is then when a certain someone appears before Iruma and his friends!

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Ameri's Decision
star
7.05
39 votes

#25 - Ameri's Decision

Season 2 - Episode 2 - Aired 4/24/2021

The Magical Apparatus Battler is put on hiatus due to Kiriwo's absence. Ameri agrees to let them reinstate the Battler, but first, the three members must experience other Battlers. Asmodeus is sent to the New Magic Battler, Clara to the Game Battler, and Iruma joins the student council. Iruma now has to face the grueling training and schedule of the student council.

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