Mairimashita! Iruma-kun fics
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Listing Series
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Priceless Exchanges by A_Slitherer
Fandoms: 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Manga), 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Anime)
04 Nov 2025
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Summary
If you had went up to Naberius Kalego and told him that he would be summoned to the human world by incompetent parents who wanted to sell him their son, Kalego would’ve either flung you across the room with Cerberus, yelled at you for wasting his time, or asked where you had gotten drugs strong enough to induce such thoughts because he wanted some. Life with Opera and the Chairdemon warranted some after all.
But now, with a rather petrified human fledgling in his room, Kalego wishes he had taken that made up warning seriously.
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Basically another ‘what if?’ Where Kalego is summoned instead of Sullivan to be sold Iruma’s soul, most of you have seen plenty of these and I’m getting brain rot from them so I’m here making my own. Let’s see how long this’ll last before my depression takes this fanfic away from me:’]
Series
- Part 2 of Of Golden Chains, Velvet Petals, and Purple Pendants
- Part 1 of Mairimashita! Iruma-kun fics
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Rebutia by A_Slitherer
Fandoms: 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Manga), 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Anime)
07 Oct 2023
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Summary
Naberius Kalego is enrolled into Babyls to serve as the guard dog. His headache of an uncle was as useful as a drunken dog on the best of days, so the elders had needed to send a fitting replacement. The plan was simple really, study and be left alone during his entire time there, graduate and then become an instructor. It was simple.
But it seems nothing was easy nor straightforward when it came down to him, especially not when it involved a strange white haired gargoyle that he- and his heart -simply found unable to ignore.
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Japanese tradition - Gifting someone a cactus plant is the equivalent to confessing your feelings to them in a love letter.
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This entire fic is basically five chapters of Kalego slowly gaining feelings for our local gentle giant during their Babyls days. This is a prequel to ‘Priceless Exchanges’ and details Kalego and Balam’s relationship (hah, they wish) and how it came to be.
Series
- Part 1 of Of Golden Chains, Velvet Petals, and Purple Pendants
- Part 2 of Mairimashita! Iruma-kun fics
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Blood Stained Rings by A_Slitherer
Fandoms: 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Manga), 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Anime)
27 Dec 2023
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Summary
Narnia enacts a plan to take out the main building and those inside for a plan with Baal. He had been hoping to avoid Henri but some things are meant to be (regretted).
Henri wanted to see his partner before taking a nap, also he has a giant hole through him. Hopefully that won’t be much of a problem.
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Narnia causes explosion that may or may not fatally wound his partner, he regrets his decision when said partner collapses in his arms with a hole in his stomach.
Series
- Part 3 of Mairimashita! Iruma-kun fics
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I Love You by A_Slitherer
Fandoms: 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Manga), 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Anime)
19 Feb 2024
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Summary
Momonoki felt her fingers tremble as she unfolded the letter, her face blushing a warm pink as she lifted the letter up with wide eyes. There wasn’t much written, there were only three words that truly mattered written.
I love you.
From your dearest Senpai, Naberius Kalego.
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It’s Kalego’s Birthday and Momonoki decides it’s now or never to finally confess how she feels. Meanwhile a certain teacher finds his kouhai mattered much more to him than he originally thought.
Series
- Part 4 of Mairimashita! Iruma-kun fics