Chapter Text
Welcome Readers!
This teen is no other than Irumi Suzuki. Why was this young teen there in the first place?
Well, poor young Irumi was born to two horrible excuses for adults. They were selfish and their only goal was to have a comfortable, lazy life. Even if it meant forcing their child to shoulder all the consequences. And those consequences have been steep. No matter how much the young girl has tried, has worked, has sacrificed herself. It was never enough for those selfish mortals. And in the end, they sold her. Not to any mortal man, no but to the great devil, Sullivan. One of the three heroes of the Netherworld. Within this new strange and foreign land- how will she adapt and stand up to these new obstacles in her life? Is this all in the turn for the better? As secrets come out, realizations made and connections forged watch as Irumi takes the Netherworld by storm!
WARNINGS: trauma, past abuse, poly-relationship/harem, mates, language, kinda-age gap
This is a fanfic based on the manga/anime Welcome to Demon School Iruma-kun! So the show/ manga content is not owned by me. There are twists of my own. And I will switch between the show and the manga though as they are not too far off from one another it will be fine. This is a wonderful anime and manga and so I do greatly recommend reading/watching if you hadn't done one or the other!
Inspired by Rosario + a vampire, blue exorcist, noblesse, dance in a vampire bund, and a few other shows/manga/fanfics
This will have some dramatic scenes and crude language- as come on it's a Highschool for demons. So there will be some cussing, and some thoughts and such.
This is a gender-bent for Iruma so he will be a she- aka Irumi. This Opera is going to be non-binary so will be referred in they, them, and so on.
Any questions or just comments feel free to leave a comment. I will try to have each chapter be an episode/manga chapter or if it's a longer/ packed in episode/manga chapter I will potentially split it into two-three chapters.
Enjoy! Feel free to comment, vote, or follow only if you want to! If you do not like this just let me know if it's anything about the structures or wording or even perhaps spelling and I'll look into it! But as a reader, you have the freedom to choose to read this or not. I am only writing this for fun, this series is really helping me out so I'll do my best to keep up with the story and continue to update this!
Now on to the first chapter!!——>>>
New Beginnings A Welcome to Demon School Iruma-Kun fanfiction With hints of inspiration of Rosario + a Vampire, Noblesse, Blue exorcist, Dance in the Vampire Bund, and a number of fanfics/theories
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Chapter 1
The Netherworld- the realm where all demons live. And the Monarch that rules is- The Demon King! However, the Demon King's throne has sat empty for ages. Only the most worthy will inherit this seat of sovereignty. But who will it be? Irumi Suzuki, age 14, she is a pitiful girl who was sold off to a demon by her idiot parents...
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“Nngh!" The young blue-haired figure grunted as they struggled with pushing the frozen dead fish back into its carrier. "Irumi! You are going to take over from here! Don't screw it up!" An older man shouted after struggling with his own cage doors. Irumi's eyes widened, turning to look at the senior worker incredulously. "Y-yes, sir!" 'He is going to make me do this all by myself!?!'
"If you can't handle it, I'm docking half your pay!" The man yelled before running away. 'H-half?! I won't be able to survive with only half!' Irumi internally freaked out, desperate to keep these giant tuna locked away.
Irumi Suzuki. Fourteen years old. As you see, she is being forced to work on a Tuna fishing boat. Simply put: her parents are selfish scumbags who refuse to work. So it's all on her.
"Ggugh! Haa haa.." Irumi panted, putting nearly all her weight against the bar doors. Why weren’t there any locks?! You'd think that'd be crucial here!!
*shooou!*
*flump!*
"Huh?" The girl dressed in boyish clothing looked down, getting further worried. The fish beside her just fell out of its confinement. "Oh..oh no.." she squeaked, spotting the ones above clunking against its doors above her. The coloring on her face quickly began to drain away.
"Whaaa!" She yelped, running away from the falling fish. And so her dangerous course of dodging, jumping, and barreling out of the falling fishes' way commenced.
"Ow.." The teen groaned, falling to the ground a short time later while she was dodging the frozen solid, dead, fish. The boat creaked and groaned, the sway dangerous as the storm and waters raged. Irumi- with her small figure and bright shoulder-length blue hair, rolled. Dodging more fish that fell from above. "Cut paycheck..." she whimpered with a soft, squeaked, and panicking voice; accepting the fact she is not capable of handling this monstrosity.
"Gah!" The teen yelped again, going onto her hands and kicking up, backflipping to dodge more of the dangerously frozen solid aquatic creatures. Panting tiredly, the blue-haired girl glanced up, cringing back and making a move to avoid as an even larger array of fish fell from above. That's to say, the dodging was soon no longer needed.
Around the girl, the area turned a muddy grey. The falling fish froze mid-air as the small teen fell to the floor unrestricted by this phenomenon, panting in exhaustion. Surrounding Irumi, a rope had materialized out of nowhere, wrapping tightly around her torso and arms, startling the fourteen-year-old beyond thought. "Wha!?" Irumi squeaked, bright blue eyes widening while looking at the rope that came into existence out of nowhere. And before her very eyes, an elderly man appeared. With bat-like leathery wings, strong golden-yellow horns atop his shiny bald head, small glasses that gleamed in front of his hidden eyes, a handlebar mustache that seemed to curl upwards with his dark smirk, and a grape-wine colored trench coat with matching suit pants. The peculiar old man lifted a hand- the pale skin clinging to the boney, slim fingers. Long, sharp purple painted nails carried forward, and the teen felt her breath leave. His eyes were piercing straight through her, focusing on her face and then on her neck. Some type of emotion flashed through his narrowed, hidden eyes briefly which only startled the poor girl all the more.
The snap echoed the abruptly silent ship, a 'sold' sign appeared on the teen's torso above the rope and in a blink, they too were gone. Leaving the fish flying and the boat doomed in the chaotic sea. 'Aah! What is happening right now?!' She cried out within her mind. Unknown to Irumi, was that this man is her buyer- and not just any normal one too- but the demon her parents contacted and sold her to for the exchange of a mere ten million yen. Before the exchange of ownership, Irumi was in the midst of the last task to pay off the debt her parents carelessly shouldered on her from deals and contracts with a local yakuza. But that was cut short with this demon 'kidnapping' her from the dangerous tuna fishing boat/illegal goods transport. And now; bound by a rope and being dragged along in a floating bubble, Irumi was stuck staring in shock and absolute fear at the man and the peculiar -to the point of frightening- world below...
"W-wait!" She cried out after her mind computed at least a small portion of what happened in the last ten minutes, struggling against the rope as they soared above a terrifying landscape that was unlike any she had seen before. Trying to be brave and piece things together on what in the world was happening. "W-where are we going?! And who are you!" Irumi shouted.
"Oor nin ru mi norshi worr mirf fer." the male seemed to say in a frightening voice. "Ah..come again?" She stuttered sweat clinging to her forehead. 'Just what language is that?! I never heard anything like that!'
The scary, flying man was muttering something again and snapped his fingers. A strange glow immediately surrounded her body, a faint purple glow from what she could tell, which weirded her out further. When the light faded, the man chanced to speak to her again. "Now, you will understand and be able to speak the demon language. Irumi…Suzuki. We are in the Netherworld." He explained simply. Irumi blinked, dumbfounded. 'Did..did he say demon language..?! And the Netherworld?!'
"T-the what?" She choked up the question, hoping to have perhaps heard wrong though..that explained the horns and wings. "It's the realm of Demons." He answered simply.
'Realm of-?!' She screamed in her mind, mouth falling slack and turning paler like newly fallen snow. "Wait- I suddenly can understand you now..?" She connected, not so subtly asking the ‘how is this suddenly possible?’, her mind still reeling and processing. "I put you under a spell," the man explained shortly, answering the buried question. "Wait..you can do that?" She muttered, 'does that mean magic exists? Then the accusations of spells and witchcraft being devil work in my home realm are..?' "Well, of course, I can. I am a demon. It's part of the package." He announced in a way that almost seemed smug. This only made Irumi sweat more. 'Does this mean I'm dead or will be soon..? Is this the equivalent to hell?!'
"Are you joking?" She choked out. 'Please be a joke- no, please be a dream! Everything is a horrible dream! I'll wake up, probably buried in frozen smelly tuna!-wait oh no! Did I die from being buried by frozen tuna?! No-no! Please for the love of everything please be a dream!!!'
"No child, I am not. My name is Sullivan. And I am a demon." He- Sullivan said, looking down and back at her confined figure. "And you should know, you're here because your…parents made a deal to sell your soul to me, so now you're mine." He chuckled as he told her. Irumi went paler if that was possible. Her eyes were as wide as dinner plates.
"My parents seriously sold my soul to a demon?! But they would never do tha-! Uh.." she breathed out, catching what she was about to say, the color of her eyes dulling as she looked down in dread. 'No..sounds about right..that's them..' "Hm..?" She looked up trying not to think much about that, just hoping this was a stupid dream that was taking ludicrous hits at the cruelty of her life.
"What's that?" Irumi voiced out, spotting a large gloomy building up ahead, cast in an eerie shadow. Strange towers with...horns? "That is my mansion." He smirked which caused Irumi only to shrink back more. Nothing good could come from that type of smirk! Dream or not! "Now what happens?! What are you going to do with me?!" She yelled, struggling and squirming in her floating bubble and bound ropes.
-5 minutes later-
"Huh...?" Irumi questioned, suddenly having a frilly bib around her neck, seated in a lusciously cushioned armchair. Her hands were held by the demon- Sullivan as he was slouching and kneeling on one knee in front of her. A wide smile on his face. "Please young Irumi! Won't you be my grandson?" The demon requested boldly, a weird baby mobile toy spinning above them at a quick pace. Irumi blinked, shell shocked and dumbfounded. Bizzare flowers all around her and a little behind Sullivan was a table set up with really weird food and what looked like desserts and tea? Really weird-looking desserts at least. Was it all even edible for her? Truly by the looks of it she’d have said ‘no’.
'...grandson...? But I'm a..'
"Huh?!" She breathed out, a bright rosy blush coming to her face as her eyes widened.
"You see.." Sullivan straightened his back a little, looking away. A faint blush on his face. "I've been alone here for all this time. And it's always been a dream of mine to have a grandchild to spoil!~" he said, hugging himself, gripping his own shoulders, and shuddering around.
"Grand..child.." she blinked. Still, startled that he said 'son' at the beginning..did her..did her parents..?
Sullivan fell to his knees again, tears coming out as he clasped his hands over Irumi's. "Levy and Belial are always bragging about their grandkids makes me so jealous!" He cried out shaking his head. Suddenly letting go of Irumi's hands and got in her face, grabbing hold of the large chair itself. "I'll buy you anything you want, and I'll spoil you rotten! So please! Please say you'll be my grandson!" He cried, getting even closer to the point Irumi had no choice but to turn her head to the side to simply talk. "Ah- but- you just told me I was sold to you? Can I even say no..?" She questioned. 'And..I'm a girl..'
Sullivan slouched. "I'll respect your wishes," he breathed out, sounding like he was about to start crying again as he turned his head away. "If you don't want to stay, I won't force you." He sniffled. Irumi stiffened, startled. 'But I've never said no to anyone my whole life!'
Indeed, Irumi Suzuki is a complete pushover. Whenever she is asked to do something and even when she isn't asked at all. Even in ridiculous situations. She will consent to anything, she can't say no. She is such a pushover, she finds herself pathetic.
By this point, Irumi was trembling in anxiety, her hands reaching up to grab hold of the little locket around her neck, out of habit her thumb traced the weird symbols engraved on the front. 'But normal people would say no to this..right..? But..if I do..say no..where would I go..? It doesn't change the fact my lousy parents sold me on the off chance this isn't a dream...and..what would I do? I'm struggling to get work..barely anyone who isn't shady will hire a fourteen-year-old without proper education! And..he did say he just wants a grandchild and it isn't like he has been shady to me either except those weird smirks-which were more a sort of amusement than conceited or cruel. If anything he saved me from those gross fish along with that disastrous ship and has done nothing but answered my questions and bring me here...what should I do..?!' She closed her eyes, gulping then picked her head up, a small rosy blush on her face.
"W-well then so I think I- wha!!" She yelped, her answer getting cut short as Sullivan got in her face again with a hearty yell of "That said!" Irumi flinched back, curling against the chair as Sullivan loomed in front of her. 'Too closeeee!!' She mentally shrieked. He turned almost chibi- almost egg-looking as he sobbed wildly, thick waterfall tears spilling from his eyes behind his glasses while his hands clung to her large grey button-up shirt.
"That's why I'm pushing you so hard! Come on! I'm literally begging right now!! You'll be fulfilling the dying wishes of an old man!! PLEEEAASSSEEE!!!" Sullivan begged without restriction. Irumi froze, trembling at Sullivan's forceful pleas and overwhelming sorrow. Her heart trembled at the three words she was weak to. The final bit of her that still questioned if she should, shattered hopelessly.
The three words Irumi stood no chance against-
Number 1- Please.
Number 2- Help.
Number 3- I beg of you.
"N-now hold on," she said, trembling. "I wasn't going to say no Mister Sullivan, but..could I ask..did..did my parents sell me on the details of me being a son..?" She asked, getting Sullivan to let go of her shirt. "Eh..?" Sullivan blinked, tears still running down his face. "Yes..?" He said bewildered but beyond happy to hear a ‘yes’. Irumi slouched, looking depressed by the news. "M-mister Sullivan..it would seem my parents misinformed you- I'm a girl sir, not a boy- I am- was their daughter." She said, trembling.
She simply couldn't believe this! Irumi knows she has hidden her figure and doesn't generally announce she is a female due to the shady places she has had to work at. But for her own parents to forget her gender identity?!! Furthermore, would this cause a problem with Mister Sullivan in the thought he was going to get a grandson? She was pathetic enough, and probably troublesome enough as well if he was hoping to have a grandson; one that could potentially inherit or play some sort of demon-related role..she doesn’t see herself being much help in such cases- so what would happen to her? Would she..would she be thrown to the side and discarded..? The thought scared and hurt even more than the fact that she has been sold and bought like an object. But to be discarded...to be all alone with the undeniable fact of being unlovable-unworthy to even have a chance of being cared for..-
Sullivan froze, his body completely stock still as the words echoed in his mind. Seeing his frozen state, fear intensified while shuttering through Irumi. She is going to be tossed aside, isn’t she? But to her surprise, that isn’t what happened; no yelling, nor any form of anger or disappointment. If anything it was peculiarly the opposite of fury and ire..it was..excitement? Accomplishment?
Suddenly; loud and abrupt, trembling and shaking as he hugged himself tight again. "A-a-A GRANDDAUGHTERRRRRR!!!~" Sullivan sang in a booming victorious voice, spinning in a hellish tornado of happiness. Irumi felt cold sweat glide down her face as she witnessed the overwhelming excitement and downright destructive glee of this demon but a relief lightened the heavyweight on her fearful heart. ‘Good job sir! Tsu-chan!!’ Sullivan thought with proud tears trailing waterfalls down his face.
And seconds later, a form of adoption papers and a contract appeared in front of her. Irumi signed and stamped her approval on this immediately with the Demon looming over her, staring at the papers intensely. The minute she was done, Sullivan took the papers and danced around with the stack held high above his head while in that honestly cute, chibi egg form of his. Indeed, after 14 years of misfortune, Irumi has acquired the habit of accepting anything. Regardless of her own wishes and the possible consequences towards her own well-being. But she hopes this time it will provide good results and a better state of being for herself- and this elder demon yearning for a grandchild.
Irumi sighed, sitting back, pressing against the plush regal-looking chair. "Mister Sullivan, there are some things I want to speak about first." "Call me grandpa!" Sullivan chirped his demand. Irumi winced but nodded, meekly complying with his demands. "R-right..grandpa-" "Ooooh!~ I love how that word sounds!~" he spun dancing again before halting and standing before her. "Anyways, yes dear granddaughter? Go on?" He asked. peering down at her in shimmering admiration. Irumi cleared her throat trying her best to gather some form of confidence before speaking further, "w-well as a safety precaution I have hidden as a boy, so before you start flaunting the fact you have a granddaughter..well um-I uh...please...please just say grandchild in public till I am ready and feel safe to be. l-well ah..m-me? Also..since..since this is the Netherworld..as a human wouldn't I be at a disadvantage at things- ah gr-grandpa?" She stuttered looking up at Sullivan a little worriedly.
His eyes softened, ‘the poor dear what did those damnable humans do to her? No- they are in the past now! She is here and I’ll protect her to the best of my ability!’ Sullivan thought with determination, nodding to himself and what his little one questioned. "Hm..? Oh! Well yes, you are correct on that..hm, well alright I'll agree to those conditions though I'd like to know the reasoning behind this at some point. Also, I believe I have a solution to that disadvantage, I'll have it prepared in the morning but first-!" He snapped his fingers and the room changed its furnishings in a great poof! A bed-larger in every width and length Irumi has ever seen before, with red satin sheets, many fluffy, soft pillows adorning the top laying against the headboard that had carvings of decorative skulls, horns, and bat wings appeared. Next to the bed on the left was a large skull-shaped telephone on a wooden nightstand. And to the farthest right, past the matching nightstand was a grand darkly stained wooden bookshelf packed with colorful books with an empty one right beside it and a desk and comfy-looking chair in front of that. The desk has a lamp and a skull-shaped utensils holder full of writing supplies on top of the polished top. Further on the right side of the room, coming closer to the door was a treelike coat hanger and a giant four-door wardrobe. The carpet beneath her feet was soft and had the fluffiest texture she ever felt. To the left side was a large window looking out to the front side yard and a door next to her left nightstand leading to what she'd assumed was her own private bath.
"W-wait what is all of this?!" She gasped in awe, looking all around her. "You are my first and only grandchild," Sullivan said like that was the most common knowledge in the universe. "Your food, clothing, shelter, and education-" he snapped his fingers again, long sharp nails just nearly meeting, changing Irumi's outer clothes into some blue and white school uniform with a red-eye brooch and red ribbon. Around her were a few potion bottles, textbooks, papers with strange characters and a couple of scrolls appeared, the items landing near the desk and bookshelf in neat coordinated piles. "Will be taken care of by me! You look so perfect and adorable! Though I would-" he snapped his fingers again and Iruma now stood in a red skirt, a light pink short-sleeved shirt, and the brooch stayed the same but instead the simple ribbon turned into a large bow. He basically squealed in delight seeing Irumi in this clothing.
"Ah! No! No!" She yelped, hugging herself and covering her upper arms, and with trembling legs squeezed her thighs shut tightly, desperately hiding the old scars from past dangerous life-threatening activities. Despite being proof of how she is a survivor-they hurt, down to every last detail connected with their existence. Sullivan paused, his blackened heart shuddering at spotting the scars in both grief and righteous-hellish fury; but kept his mouth shut, pretending he didn't see a thing, and snapped his finger again. Instead giving her a kind smile as he changed it back to the male uniform. "You look wonderful in both sets, Irumi-chann!~" he sang happily. "With this, I'm going to enroll you in a demon school- The best demon school there is!" He exclaimed with a blush while clapping. "Ah- a demon school. I suppose that would be a thing here." Irumi mumbles, blinking, relaxing a bit when the clothes have changed back to the male uniform more exactly- everything now successfully being covered back up.
Sullivan then changed again into his chibi self, crying and blowing his nose into a handkerchief. "Because of your lowlife ‘parents’, you were forced to start working young and never got your chance to go to school!" He sniffled before slashing his hand in the air. "But fear not! All the paperwork has been taken care of! I am your grandpa, remember!" He was just babbling on at this point. "Y-yes grandpa-" "OOOOH I JUST LOVE HOW THAT SOUNDS WHEN YOU SAY IT!!" He cried out again.
"On your first day, we will have to take a picture!!" "C-could we slow down a bit?" Irumi stuttered, getting more and more overwhelmed. "There's never been a human being enrolled in this school! But you won't be eaten as long as they don't find out what you are!" He said joyously, giving Irumi a heart attack, a bad spin of a poorly used old joke he used to use at a constant so long ago. "If they find out they'll eat me?!" She nearly screamed, her legs trembling and knees nearly buckling. "Kyah!" She yelled when Sullivan grabbed a large vase and suddenly dumped a large amount of liquid onto her while yelling splooooosh.
"This fragrance will cover up your human scent, so you can stop worrying." Sullivan chirped with a casual shrug. Irumi twitched. Her heart thundered as she began to tremble more. 'Did I make a mistake...?' She thought worriedly, sweat coming off her like a waterfall, "a-actually you know I'd rather-" Sullivan began to walk away. "I'm so relieved that you are such a delightful kid Irumi," "huh.." "if you had declined...I'd of had no other choice but to eat you for dinner tonight." Irumi turned stock still, staring at Sullivan as he sorted through the school supplies in muted horror. Unaware that was only another poorly made joke on his part. "Sorry, you were saying?" Sullivan turned towards Irumi who cleared her throat. "J-just that I'm worried about fitting in, that's all." She said, giving a shy, uneasy laugh.
"Oh no worries Irumi-chan, you'll do great! So henceforth this room will be yours!" "Ah-thank you!" Irumi thanked him while giving a polite bow. Sullivan smiled down at Irumi, patting her head affectionately, "you'll have to get up early tomorrow so we can go through all the details, and the entrance ceremony is pretty early as well so get plenty of sleep. Good night!" "Ah-tomorrow-" she called out in alarm, previously assuming school was in a few more days' time but the door closed in front of her before she could get out much else. "Good night.." Irumi sighed, turning towards the bed and finding a pair of silk pajamas that looked just a little big on her. "I have my very own room..this is a first.," she muttered as she came closer to the bed. "I swear..all my life has been hell really..what much difference is going to be in the actual thing..?" She mumbled to herself.
Breathing out a sigh again, Irumi undressed, undoing the bandages around her chest and back before slipping on the shirt and pants. "So soft.," she whispered, running her hand against the fabric. The poor girl looked down, staring at the bed for a moment before looking out the grand size window, looking up at the sky. She breathed out, eyes closing as she tucked herself into the bed. A little piece of herself still hoping this was all a dream- yet..she also hoped this was real. "So much like a dream..could I..could I allow myself to be cared for..?" Irumi asked herself, before closing her eyes, falling asleep instantly at the heavenly soft bed and pillows, already feeling comfortably warmed by the soft blankets.
Outside her door, in the hallway, Sullivan sang and basically skipped in happiness. His arms were tucked in and his fingers curled making it seem like he had paws. In front of the demon was another. One with cat-like ears as horns and tail, hair a dark reddish-orange, cut short in front, and a simple braid in the back that fell to their shoulder blades. A butler uniform on their body. "You take your whims much too far." The monotonous voice stated bluntly. Their expression stayed purely blank. "Opera!" Sullivan greeted in gusto. "You could have adopted any or all of the demons you wanted. But why would you adopt a human as your grandson? What could you possibly be up to?" Opera questioned not yet knowing the human child was a young girl instead.
Sullivan's face turned momentarily sullen, serious, mulling his words over. "Nothing, really. Hmm, you'll understand someday, Opera. Ah yes, tomorrow morning could you prepare the seal for the blood binding adoption? Also, that is granddaughter~ little Irumi-chan is actually a sweet little girl! I'll be counting on you to help her! Ah and with that potion, I talked about earlier- could you get that set up for tomorrow as well to go with that blood-binding seal-also could you look into those varieties of scar creams and salves in the medical and beauty market? Thank you~~~ hm 🎶 hmm hm hm 🎶 I simply can not wait for tomorrow~" he sang resuming his skipping. Behind him, Opera blinked blankly, a bit concerned and a bit confused at this situation and the one they call Master. "Haa.," they uttered simply in a sigh, leaving to prepare regardless of how they felt.