Welcome to the netherworld, Y/n-san!
DragoSerenity
  • Reads 2,012
  • Votes 86
  • Parts 9
  • Time 1h 44m
  • Reads 2,012
  • Votes 86
  • Parts 9
  • Time 1h 44m
DragoSerenity
Ongoing, First published Mar 27, 2024
asmodeusalicecomedydemonsdevilsfanfictionfantasymagicnetherworldoperareverseharemromantic-comedyschoolsexysliceoflifesullivansupernaturalwelcometodemonschoolwelcometodemonschoolirumakunwtdswtdsik
This starts way before the original plot of "Welcome to demon school Iruma-kun!" and will have quite a few changes. I suck at introductions...I'm sorry!

She/her pronouns

A human child brought to the netherworld as the granddaugther of a demon. Nothing can go wrong.....right?

Welcome to demon school, Iruma-kun! belongs to Osamu Nishi.
All Rights Reserved
asmodeusalicecomedydemonsdevilsfanfictionfantasymagicnetherworldoperareverseharemromantic-comedyschoolsexysliceoflifesullivansupernaturalwelcometodemonschoolwelcometodemonschoolirumakunwtdswtdsik
Table of contents

9 parts

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Welcome To Demon World, Nao - Chan! || Mairimashita! Iruma-kun fanfiction by RubyIsLost218
21 parts Ongoing
Nao, a 20 year old girl suddenly transmigrated into anime world after tripping over nothing. lol. Can she survive with her new body? Follow her new journey into demon world! !! I don't own 'Mairimashita! Iruma-kun! It's belong to Osamu Nishi. I only own the fanfic, drawing and the story fanfiction!! The heck am I writing anyway¿ Anyway english is not my first language, so I'll apologize for the grammar mistake!
😈 Tales of a Cambion (Book 2) 😈 by crimsonrhodonite43
28 parts Complete
Isabelle continues living her new life with new friends at a new school, with secrets to reveal and keep and new demons to meet. Does she have what it takes to make her time in Babylus all the worthwhile? DISCLAIMER: Welcome To Demon School! Iruma-kun (C) is created by Osamu Nishi. The following characters, excluding Abaddon Isabelle and Gremory Acheron (which are mine) belong to Osamu-chan. Suzuki Ryūko and Félin Lavande are under Hayami_Minato's property. Levina Kaminari is SongtheRiotChild's character while Siegfried Yanna belongs to LunaWu3. I have no rights to claim any canon characters of the anime as my own as it it considered plagiarism.
😈 Tales of a Cambion (Book 1) 😈 by crimsonrhodonite43
32 parts Complete
14-year-old cambion Isabelle Abaddon wanted to escape all the prejudice she had endured since childhood and considers staying in the mansion of an old family friend the first step to a fresh start in life. But what happens if she runs into two 14-year-old human twin siblings, whom this family friend has taken into custody as his 'grandchildren'? Days chock full of fun, chaos, insanity, and unwanted attention. DISCLAIMER: Welcome To Demon School! Iruma-kun (C) is created by Osamu Nishi. The following characters, excluding Abaddon Isabelle and Gremory Acheron (which are mine) belong to Osamu-chan. Suzuki Ryūko and Félin Lavande are under Hayami_Minato's property. I have no rights to claim any canon characters of the anime as my own as it it considered plagiarism.
Mara and her demonic beasts (Mairimashita Iruma-kun) by winxsparklz
17 parts Complete
"Welcome to demon school! Mara chan and Iruma kun!" Yes, Suzuki Iruma, 14, a normal human boy and Mara Valentine, 15, a celestial exorcist who can see spirits are transported to a world filled with ferocious demons by Sullivan and Lucifer. They must keep their human identities a secret or else they will be eaten alive! but how can they when they are thrown into dangerous situations almost all the time?! Life won't be so easy with Mara either, especially since she has a scythe that can absorb magic, the amulet of Valkyrie, the power of light or purification and death on her side. Can this duo surpass their limits? What other mysteries lay in Babyls demon school? Will they survive to fight another day? In the midst of sorrow and war, who will become the next demon king and queen? Ironically, as the two struggle to survive, their upbeat kindness and attitude swoon over the enemies heart's. Disclaimer! I don't own the anime, the art and the characters except the ones that I created. All rights are reserved by Osamu Nishi for creating "Welcome to demon school! Iruma kun!" (Also this book won't follow the storyline)
Welcome To Demon School! Ryūko-chan & Iruma-kun [Volume III] by Rozeal_Zhao
29 parts Complete
The second semester of the year has arrived, now filled of greater challenges and trials of strengths and brains. Cambion Suzuki Ryūko and human sibling Suzuki Iruma are now tasked with some of the most formidable objectives to ever accomplice before their second year commences! Will they be able to once again survive the darkness of the Netherworld, or will their identities be of greater danger? Only fate will decide! Returning from a long wait, welcome to the third volume of Welcome To Demon School! Ryūko-chan & Iruma-kun! Together we will ecplore a brand new adventure with a dazzling never-before-seen cast!
Save The Netherworld, Iruma-Kun!! || A WTDSIK Fanfiction by UrGayFriendJax
23 parts Complete
(This is a Welcome To Demon School, Iruma-Kun! Fanfiction) Iruma Suzuki. Age 8. Sold to a demon called Balam Shichiro because his parents wanted to be rich. Iruma hadn't had the best life with his original parents. From being arrested at just five because of them to nearly getting killed by a bear, he wished his luck would change. Then his parents sold him to a demon. Balam Shichiro. He thought he was dead, but Balam decides to take Iruma as his own son, raising him as a demon. Now, Iruma has more problems to deal with. From making sure nobody realized he was a human to trying to rank up, he had to do his best. Suddenly, a new villain arises in the demon world, and the Thirteen whose watched over the demon world for centuries, way longer than Iruma had been alive, start dissapearing, Now Iruma has to continue to rank up while also making sure his dad and his friends wasn't taken as well. Will Iruma be able to stay safe and rank up with his friends? Or will he be the next meal on the Demons plates?
A little bit of Fluff for the heart XD by Chimera_Regarion
15 parts Complete
... Do I have to say really more than this? Oh well here we go! Kallego was definitely not expecting to be summoned by a human child and even less being offered their soul just to get a better life. Now what should this demon do when he pities the small child and takes him in? Was this expected? Nope. Was this his intentions from the start? Nope. Was he getting baited by something called Cookies? Nope.... well maybe.... Find out for yourself what Kallego is to do with a child aka Iruma! A/N: This is a Welcome to demon school, Iruma fanstory hope you enjoy! Please also feel free to correct my bad writing. Rights on the pictures go to the artist. I do not own iruma, rights to the owner.
Love you like a Vampire by Chimera_Regarion
13 parts Complete
When legends and myths arises once again and a completly forgotten race come forth from the background, what will the demons do about it? Iruma is not a normal human, in fact he is one of the only vampires still living and excisting in the human world. He was simply lucky he managed to escape to the human world when the boarders to the demon world was closed off. However due to some incidences he fell into a deep slumber until recently.... not the thing was.... Fate and life planned to get him back to the demon world... the question was... were the demons ready for him? A/N: Feel free to correct my bad writing. Rights on the pictures go to the artist. I do not own Mairimashita! Iruma-kun! , rights to the owner.
Welcome To Demon School! Angel-San! (WtdsikxOc) by Sugarflyarts
15 parts Ongoing
Erica Cassiel had been a Guardian Angel for quite some time now and although her ward lead a life that was nothing short of perilous, she would barely be able save him on account of him somehow managing to save himself. It was almost infuriating in a way. If only she could save him from his terrible life, but alas, lesser angels like herself were not allowed to go that far. At least until the day Iruma was dragged to the realm of demons and she had no other option than to bend a few rules. Or Iruma gets dragged into the Netherworld and his Guardian Angel follows. ___ Welcome To Demon School Iruma kun is made by Osamu Nishi, I only own my Ocs and drawings.
Welcome To Demon School! Ryūko-chan & Iruma-kun [Volume I] by Rozeal_Zhao
31 parts Complete
Suzuki Iruma and Ryūko, human (though Ryūko maybe half-demon), 14, one day found themselves taken against their will into the world of demons. To add to their predicament, their doting owner and self-appointed "Grandpa" is the chair-demon at their new school. In order to survive, Iruma and Ryūko must deal with two haughty students who challenges them to a duel, a girl with adjustment issues, and so many more scary beings! Can this duo of an ultimate pacifist and a cold fighter dodge and fight the slings and arrows that are flung their way? As they struggles frantically, Iruma and Ryūko's innate kindness begins to win over enemies. DISCLAIMER: Welcome To Demon School! Iruma-kun (C) is created by Osana Nishi. The following characters, excluding Suzuki Ryūko and Félin Lavande, belong to Osana-chan. I have no rights to claim any canon characters of the anime as my own as it it considered plagerising. Also, big thanks to PikaBlaze (DeviantArt) for being the reason I started this story as I was astounded by their story, causing me to try and use my characters in the story.
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Slide 1 of 10
Welcome To Demon World, Nao - Chan! || Mairimashita! Iruma-kun fanfiction cover
😈 Tales of a Cambion (Book 2) 😈 cover
😈 Tales of a Cambion (Book 1) 😈 cover
Mara and her demonic beasts (Mairimashita Iruma-kun) cover
Welcome To Demon School! Ryūko-chan & Iruma-kun [Volume III] cover
Save The Netherworld, Iruma-Kun!! || A WTDSIK Fanfiction cover
A little bit of Fluff for the heart XD cover
Love you like a Vampire cover
Welcome To Demon School! Angel-San! (WtdsikxOc) cover
Welcome To Demon School! Ryūko-chan & Iruma-kun [Volume I] cover

Welcome To Demon World, Nao - Chan! || Mairimashita! Iruma-kun fanfiction

21 parts Ongoing

Nao, a 20 year old girl suddenly transmigrated into anime world after tripping over nothing. lol. Can she survive with her new body? Follow her new journey into demon world! !! I don't own 'Mairimashita! Iruma-kun! It's belong to Osamu Nishi. I only own the fanfic, drawing and the story fanfiction!! The heck am I writing anyway¿ Anyway english is not my first language, so I'll apologize for the grammar mistake!

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