DISCONTINUED When Sullivan decides to buy Iruma to become his grandson, he did not expect a granddaughter to also make an appearance. Well, he expected it, but was more surprised he succeeded on the first try... Now Iruma Suzuki and Y/n L/n are tasked to act like twin siblings and to blend in with the demons in the Netherworld's most prestigious demon school: Babyls. ----------------------------- Enjoy. (Best enjoyed if you have seen the anime first) I WANT YOU TO BE MY GRANCHILD (Welcome to demon school/reader-insert) [slow updates] Also posted on Ao3 Top tag rankings: 1st on #Opera (May 9 2023) 2nd on #ik (May 10 2023) started: February 6 2023 I ONLY own Y/n and all the changes that I had to make to the story to accommodate her existence. Other story parts or ideas that aren't considered as canon in the anime also belong to me. Cover drawn by the author. Everything else is owned by the creators of the show and manga "Welcome to Demon School Iruma-kun!"/"Mairimashita! Iruma-kun".

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)

What if Iruma lost all hope in his life and was about to end it all when Sullivan found him? His whole life, Iruma didn't do anything else but obey his parents and everyone's wish. BUT enough is enough. He has had it. Tired of life and fighting for it, he decided to end it all with one jump. Little did he know what his parents did... Opera was the butler of Sullivan and a close aid to the demon. Now with Iruma in his home, he had to watch this little innocent and hurt angel as much as he could and try to get him back to his usual self while Sullivan was usually very busy and wasn't at home often. 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.

You are Y/n-Kun and after Your shitty parents sold you off to A Demon Lord, who really wants A Grandkid to call his own, You go on A New adventure with Demons, Angels, Fallen Angels, and even Shinigami

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.

What if Iruma never was a human bit an angel and fell down from heaven? What if he lost all memories of being an angel? What if Sullivan finds him in the underworld and takes him in because he knew that a demon with a kind heart but no wings wouldn't survive? What if the teachers find out about the wingless situation? Well let's find out! A/N: This is a welcome to demon school Iruma-kun fanstory and I have no idea where this is gonna go ... hope you enjoy! Please also feel free to correct my bad writing. Rights on the pictures go to the artist. I do not own Welcome to demon school Iruma-kun, rights to the owner.

An Average Day turns to absolute shockwave that will change the course of Demon History! A human that was assumed to be a demon, suddenly finds a way to become a demon himself. How will his life change after his sudden transformation? Will he find life going his way or will he find hardship knowing that he will never be able to go back to the way things had used to be?

Updates on Fridays [Book One] Y/n Naberius the adopted Daughter of Kalego Naberius.... Due to Kalego being busy with his Teacher work at Babyls.... Y/n get babysits from Opera due to their Senpai-kohai relationship... And owns the title as Sullivan's so-called-daughter.... What might happen if Y/n meets Iruma? The adopted human Grandson of Sullivan.... Will they be friends? Or be enemies? Let us read more about the future adventures of both Y/n and Iruma! ========= Disclaimer: I do not own Mairimashita! Iruma-kun! him mjn •~•~•~•~•~•~❤🌺❤~•~•~•~•~•~• Thank you @Hayami_Minato for making our beautiful book cover.

What if Iruma had an older bother, but he was treated even worse than Iruma by their parents because he was cursed, and what happens when these two brothers are on a job then sudden get taken to the Demon world by a mysterious Demon?

Beatrix, villainess and social butterfly, gains the memories of a girl of another world. Unsatisfied with her fate, she plans a scheme to overthrow it, and prove that the heroine is not as perfect as she seems to be. With the goal to retake her position, the way it should be.