Iruma-kun Sister+
StorytellerAnime2021
  • Reads 44,134
  • Votes 1,269
  • Parts 17
  • Time 59m
  • Reads 44,134
  • Votes 1,269
  • Parts 17
  • Time 59m
StorytellerAnime2021
Ongoing, First published May 14, 2020
fanfictioniruma-kunlordsullivanoriginalcharacterwelcometodemonschool
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]
All Rights Reserved
fanfictioniruma-kunlordsullivanoriginalcharacterwelcometodemonschool
Table of contents

17 parts

Sign up to add Iruma-kun Sister+ to your library and receive updates
or
#2welcometodemonschool
Content Guidelines
You may also like
True Ruler by Chimera_Regarion
26 parts Complete
Fourteen-year-old Iruma has been unfortunate all his life. However never did he gave up to reveal his secret. No one was after all alowed to know it. What happenes when he find out that his adoptive parents sold him to a demon? What if that very own demon only wants a grandson and nothing more? At first, Iruma tries to keep a low profile in fear of his peers discovering that he is a dragonkin. Unfortunately, this ends up being more difficult than he expected. Even under normal circumstances Iruma was never allowed to reveal his true nature and race. His parents never cared much for him, since he wasn't their own flesh and blood. What will happen to this little dragon in his new environment? Will he be able to keep his secret? Find out yourself! A/N: This is more or less a copy of my other book which is a crossover. I am doing this because I was dared and get cookies if I finish it :). 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.
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)
A Darker Path - Welcome to Demon School Iruma Kun! Fan fiction by renkurio00
23 parts Complete
We all know the story of the human boy that has saved the demon world countless times and took the Netherworld by storm, but what if the story took a much darker turn? Iruma's fear of those around him getting hurt takes him down the wrong path, one that Baal had anticipated all along... So what will happen when Iruma goes down a darker path...? (This plot line is centered after the Deviculum arc and contains SPOILERS ⚠️ for the manga)
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.
Guardian of My Heart by Darksider58
30 parts Complete Mature
In an alternate universe where Iruma is half demon, half human. His terrible "parents" aren't his true family, and neither of his true human or demon parents are known to him. Surviving in the human realm as a creature that shouldn't exist, Iruma struggles against the pain and anguish of his life day after day. But when his darkest hour approaches, a familiar presence comes to his aid. He will struggle to adapt to the Netherworld and its demonic nature, as well as survive the internal struggle within himself. Can he move on from the pain of his past and look towards a brighter future, or will he slip into the depths of despair the likes of which none have faced before? (Or: Iruma is Opera's biological son, and he is rescued from the human realm by Demon Border Control and brought to the Netherworld. He has trouble fitting in with his fellow demons at first, but slowly things look like they're getting better. Stress over keeping his hybrid nature a secret begins to build, and he struggles to control his bloodline magic without letting it control him.)
Welcome To Demon World, Nao - Chan! || Mairimashita! Iruma-kun fanfiction by RubyIsLost218
22 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!
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.
Into the Netherworld || Naberius Kalego x Reader Fanfiction by whosliyaa
18 parts Ongoing
Suzuki Hanako, a 23-year-old university student, found herself on a tuna fishing boat in the middle of the ocean, far from the typical summer vacation. She was working alongside her younger brother, Iruma, as part of a grueling job forced upon them by their parents' selfishness. Their parents, refusing to work and living off their children, had pushed Hanako and Iruma to labor for their survival. Hanako, though able to leave this life, stayed for her brother's sake, unwilling to abandon him to bear the burden alone. *** Mairimashita Iruma-kun is a series that belongs to Nishi Osamu This is a Welcome to Demon School Iruma-kun Fanfiction Naberius Kalego x OC(or Reader) Really liked the anime and manga. So I thought let's write a fanfic with my favourite character in it. It's my first time writing a fanfic, so it's not going to be perfect but I hope you liked it. Also it's probably going to be more of a slowburn/slow type of fanfic.
Kill or BE Killed by Chimera_Regarion
15 parts Complete
A killer on the lose! What would you do if there is a human more terrifying than any demon in the demon world. He has encountered soo much in his life that this little assassin was more dangerous than anyone else. Soo many ways to kill and soo many ways to survive! How will Iruma deal with the situation if he suddenly finds himself in the hands of a demon and not only that but what if this little human even stumbled accidently into the demon world on his own getting caught killing and even demolishing a powerful demon on his onw?!!!!!!! Well just follow Iruma and see for himself as he gives the word cruelty and demonic a brand new meaning! A/N: This is a 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.
Watch Out demon school! Y/n Is coming thru! by FluffyCloudsKittens8
26 parts Ongoing
If you could live in a world filled with magic would you? Well that's what happened to our protagonists. Iruma Suzuki a hardworking and sweet boy as well as Y/n Suzuki a laid back actor, find themselves in this situation. So now the twins have to survive in a fantasy world. This may seem great at first but this world is filled with man eating demons who value power above everything. So can they survive in a world were humans are delicacies? Most characters in this story belong to the manga Mairimashita iruma kun made by Osamu Nishi.
You may also like
Slide 1 of 10
True Ruler cover
Mara and her demonic beasts (Mairimashita Iruma-kun) cover
A Darker Path - Welcome to Demon School Iruma Kun! Fan fiction cover
Love you like a Vampire cover
Guardian of My Heart cover
Welcome To Demon World, Nao - Chan! || Mairimashita! Iruma-kun fanfiction cover
A little bit of Fluff for the heart XD cover
Into the Netherworld || Naberius Kalego x Reader Fanfiction cover
Kill or BE Killed cover
Watch Out demon school! Y/n Is coming thru! cover

True Ruler

26 parts Complete

Fourteen-year-old Iruma has been unfortunate all his life. However never did he gave up to reveal his secret. No one was after all alowed to know it. What happenes when he find out that his adoptive parents sold him to a demon? What if that very own demon only wants a grandson and nothing more? At first, Iruma tries to keep a low profile in fear of his peers discovering that he is a dragonkin. Unfortunately, this ends up being more difficult than he expected. Even under normal circumstances Iruma was never allowed to reveal his true nature and race. His parents never cared much for him, since he wasn't their own flesh and blood. What will happen to this little dragon in his new environment? Will he be able to keep his secret? Find out yourself! A/N: This is more or less a copy of my other book which is a crossover. I am doing this because I was dared and get cookies if I finish it :). 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.

More details