Kana now enters the world of demons from her favorite manga 'Mairimashita Iruma-kun' and goes to Babilus Demon School with her new brother, the original main character: Iruma! No copyright intended, I do not own Mairimashita Iruma-kun which is where this Fan fiction is based. The only character i own in this fan fiction is Kana. The author of Mairimashita Iruma-kun is Osamu Nishi, Akita Shoten is the Japanese publisher. I do not claim ownership over the based manga. This is fan fiction based on the manga, however it is Not a part of the original canon. Intended only for entertainment. I am not making any profit from this story. Please do not comment any negative things, this is also my first fan fiction. I hope you enjoy!

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.

I'm not good at making descriptions so... You'll see?

I got some inspiration from one of the wattpad story "welcome to demon school fanfiction" I try to make my own story... I hope your guys like it.. This story goes like this... There was a girl who was born in the human world. Her father was the angel that fall from heaven as he was turn into a demon and her mother was a human but with witch power. Both her parents die when she was still young and start living all by herself until she was caught by the priest. After that her life change for the better when she teleport herself to demon world and meet with Iruma became...his twin sister? What happen next? Read the story if you want to know it... This is only a fanfiction...I do not own any of the character in this story accept for the hybrid girl ♡♡♡Well enjoy your reading♡♡♡

A bored Rimuru Tempest accompanies Diablo when he goes to meet with an old friend in the Netherworld. What will happen when he meets an out-of-place human boy who piques his interest? (Tensei Shitara Slime Datta Ken and Mairimashita Iruma-kun crossover)

Please read the description before entering. Any questions that are already answered by the description will not be repeated, but reminded of, in case anyone forgets. Virtually interact with the main cast of Welcome To Demon School! Iruma-kun through a special social media platform in the Netherworld. Don't miss out on all the action and have fun with everyone. There are various scenarios to choose your interactions with the characters and even some with storylines that differ from the main anime/manga itself, like special school courses, romantic tensions rising, battles against time to save others and a whole lot more to see. Interactive Characters: - Suzuki Ryūko (OC) - Suzuki Iruma - Asmodeus Alice - Félin Lavande (OC) - Valac Clara - Azazel Ameri - Amy Kiriwo And many more. DISCLAIMER: Welcome To Demon School! Iruma-kun rightfully belongs to Osamu Nishi and the following original characters of the series do not belong to me, unless that specific character is my own creation. I therefore have no rights to claim the manga, anime or characters as my own.

Read the story about how the fourteen year old boy becoming a demon's grandson getting a new sister and how they both change the from the main plot of the story. Chapter 1: Iruma-kun new sister Chapter 2: Aku meets Iruma's friends Chapter 3: Aku meets the Misfits Chapter 4: Aku meets the teacher Chapter 5: Aku meets her familiar Chapter 6: Aku gains weight Chapter 7: Aku gets in shape Chapter 8: Aku gains her rank Chapter 9: Aku's Magic Chapter 10: Genie and Opera Chapter 11: A pretty flower Chapter 12: Sibling Bounding Chapter 13: Wingless Chapter 14: Let's date Chapter 15: [Insert Chapter Title]

I'm extremely happy that people are still reading this book, but it's discontinued. It is cringe and I lost the motivation and left the Fandom. I'm also focusing on my school and grades. THIS BOOK IS REALLY CRINGE. THE MAIN STORY THAT I WAS SUPPOSED TO WRITE IS BARELY WRITTEN ON THE BOOK. But I'm really glad that yall still read this book♡(੭˶•༝•˶)੭･:*ੈ♡‧₊˚:･ >°<>°<>°<>°<>°<>°<>°<>°<>°<>°<>°<>°<>°< I'm not good with descriptions So Enjoy? About: an oc of mine getting to travel any anime and the anime she chose is Mairimashita Iruma-kun. Disclaimer: other characters and pictures are not mine but akane is my oc if you are gonna borrow her please tell me. If there are any mistakes please tell me about it Sometimes I take a lot of time to upload new chapters, special chapters and others. (there was so special chapters)

Suzuki Ryūko and Iruma, twins of the Human Realm, adoptive grandchildren of Three Crowns member Sullivan and honour students of the prestigious Bablys Demon School of the Netherworld. This is a grand new beginning on another journey of their daily affairs as they live in the realm of demonkind. With new demonic entities, friends and foes they will make and much is to absorb themselves in their new life. But even with all this good in their new home, will they be able to keep their human identities secret from all demonkind? Join them as they bear embarkment of this historic volume of their survival! Now comes the second volume of the series! Welcome To Demon School! Iruma-kun (C) Osamu Nishi Suzuki Ryūko & Felín Lavande (C) Hayami_Minato Collaborative recreations are welcome if granted by the author herself.

"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)