Killua x reader oneshots!

Killua x monster!reader 🪐

Suggestion by @weser10
(U/C) = unnatural hair color (jet black included)
Btws everyone is sorta aged up, it's kinda obvious tho
Also just thought the music was nice ^~^

~✰~

Killua, an Elite assassin was captured.
This may seem impossible, or unfathomable but it happened. The cat eyed boy had his hands chained up to a wall, and his legs attached to a heavy weight. He was sitting in a sickening dungeon, that he had little idea the location of.
"Hey!" He panted, chains rattling as he struggled to escape. "I can sense you, your not being slick!" He growled, "show yourself." He shoved his hands forward, making a loud snapping sound. He stopped to catch his breath, and tilted his head to the ground. I feel sick.. he began to get woozy and the world started to go black. I've been here for weeks.. weeks? He began to question things. I've trained for this, I shouldn't be letting go so soon.. did they.. poison me? His breathing began to get Rocky, no.. no it can't be. He threw his back against the wall trying to keep himself awake
"Is my essence having an affect on you, Mr. Zoldyck?" A tired Voice said from the shadows spoke.
Killua's eyes popped back open, he quickly brought his head up and looked around
"Who's there?!" He shouted. Suddenly someone, or... something emerged from the darkness. A strange looking being, long messy black hair flooded down to the floor, dragging behind her. She had horns that curved behind her head, she had 2 hooves for legs and a fluffy tail. Another girl emerged, "we're keeping you here until master gets back from her job..." she muttered, nervously. Her hair was slimy and her eyes were bright yellow. She was wearing a short crop top with the words "daddies girl" on it. She had small shorts and large hips, sort of shaped like a pear.
"Oh shut up you succubus, no one cares." A sassy pink skinned demon came from the right. "We're supposed to watching him, not keeping him company." She rolled her eye and flipped her hair, a shade lighter then her pink skin. Her long sharp red horns matched her eyes.
"Who are all of you.. an- and who's the 'master?'" Killua yelled, attempting to stand up, but failing.
"Oh shut it, zoldyck. She'll be back soon to decide what to do with you." The annoyed looking monster slid down and sat on the obscenely gross floor.
"You make a lot of racket." The emotionless girl grumbled. And sat with her knees next to her chin.
"Let me go.. now! Or else I'll kill you!" Killua threatened.
"Y-you c-can't kill us, your all chained up.." the slime succubus stuttered.
"For once I can agree with the dumb bitch." The half ram girl spoke in quite familiar tone (cough feitan).
"Can you two be quiet for two seconds?!" The tall one from before yelled.
"I-in fact I can't.. and you w-would know that."
"You shouldn't be talking, bimbo slut."
"You know what, fucking goat looking b—"
"Silence" the three monsters immediately dropped to there knees and bowed with utmost respect. A tall woman emerged, she had (U/C) colored hair and grey skin. She was wearing a white dress with golden accents. Her eyes were completely black, matching her horns and triple tales. Her fingers were freakishly long, much like claws and behind her head was a strange looking vertical halo, one large eye floated in the middle. Killua's eyes widened in shock.
"Who.. are you?" He spoke quietly. The woman walked closer to him and bent down in front to reach his eye level.
"I am Y/N, fallen arc angel destined to be forsaken by a monster" she extended her hand out, the chains abruptly shattered. Killua thought about taking this moment to escape, but he saw that this woman.. this creature was far to powerful to fight.
"You, killua Zoldyck, are coming with me." She signaled for him to follow her, he did what he was told, not wanting to be killed. Beyond the darkness was an old abandoned— but non the less in great shape— castle. There were many monsters scurrying around, staring, stumbling and bowing for the woman taking him. "Gon!" She called. A zombie looking creature walked up and spoke casually.
"What do you need?" He tilted his head and smiled.
"I'll be taking a bit of time off, please clear my schedule.. and tell kurapika to stop eating the spiders around the castle, he leaves them half dead everywhere." Killua went pale, paler then he already was. how big are the spiders here..? He thought, shaking it off quickly.
"On it!" He giggled then hurried off.
"Where exactly are you taking me to?" Killua questioned hesitantly.
"Don't be nervous, im not going to hurt you." The tall woman said in a joyful tone. "Us monsters don't tend to murder for no reason." She laughed. "I'm just extremely fascinated by your electric ability. I noticed that it is very powerful and must have taken a very long time to master. What type of monster are you?" Y/N walked in front of him, trusting killua for some strange reason. The tense boy loosened up after learning the monsters true intention.
"Oh.." killua began, he pressed his hand to the back of his neck, "it's called nen, I started learning it when I was 12.. and I'm not a monster, I'm a human being.." he spoke slowly.
"Oh..? And what is this nen you speak of?" The tall being said and turned around.
"It's something everyone can do.. everyone with aura anyway.. but hey, if you had no intent of hurting me why did you stick me in a dungeon with no food or water?" Killua began to feel more comfortable with Y/N, talking more casually.
"They didn't feed you?!" She gasped. "Oh they are going to get it! I'm so sorry, killua, we'll get you some food in a bit." Killua smiled shyly, realizing that he was safe. "Anyways, the reason I brought u here is to ask if you could take a couple of days— granted u already have taken a few weeks— to let me study you!" She exclaimed.
"H-huh?!" Killua flushed red, the monster obviously didn't realize what that might mean to humans. "U-Uhm.." he hesitated, what could a few days hurt? He thought. "Sure" Y/N clapped her hands together and began to lead him to a testing room. Once they entered, she told him to sit down on a bed, to which he listened.
"Now.." she turned around and walked over to him. "Electrocute me!" She yelped.
"What?" He questioned, shocked.
She looked deep into his eyes "you heard me." She grabbed his hands with hers and smiled. Killua suddenly felt a tingling in his cold heart, and wondered if it was what he thought it was. Am I feeling this way for a monster.. a monster I just met?"

~✰~

A/N: hellllooo, first requested. This one sort of went off the rails, but I did enjoy writing it. If you have any suggestions there is a chapter that you can comment your requests. I wouldn't mind doing a part two of the killua x Monster Reader tbh. Anyways thanks for reading!
-1228 words