「Anime x Reader One Shots」

Monster (Yandere!Ayato Kirishima x Reader)

He was always there for you whenever you needed him. He cared for you when you were sick, he was your designated shoulder to cry on, and he even knew every single one of your secrets that not even your closest of friends knew about. He meant the world to you; you loved him. You only wish you knew more about him.

It never struck you as odd whenever he'd sneak out of the house in the middle of the night. Other girls would accuse their boyfriends of cheating, but not you. Not him. Trust was something you strongly believed to be the foundation of a relationship and you did trust him with everything you had. That's why you never questioned where he was going or who he was meeting that late at night. If he wanted to tell you, he would.

His possessiveness was also something you never questioned. Sometimes, random people would approach you on the street when you were with Ayato causing his anger to flood out. He'd chase them away, never letting them get too near you whether or not they were a man or woman. You never thought much of it; after all, most guys are clingy and protective when it comes to the girls they love, right? Ignorance is indeed bliss.

On this night, Ayato was acting stranger than he usually did. Normally, he'd never leave your side no matter what you were doing. That night, though, he barely spoke to you let alone stayed near you. For some reason, he was distant and it scared you. Should you have been more worried all that time? Was it a mistake to have that much trust in him?

That night was one of the night's he decided to sneak out. For some reason, that didn't surprise you. Going against all of your morals, you decided to follow him for the first time. Would this finally allow you to discover why he's been so distant? If there really was another girl he was seeing, would you even be prepared to handle the heartbreak? Because that's what this all was - him cheating... Right?

Something that felt slightly like fear engulfed you as you continued to follow him. You didn't exactly know why, but you felt as if something bad would happen. Something far worse than discovering that he had been cheating on you all along. As he turned another corner, you quickly caught up to him. But before you decided to follow him around the corner, you hesitated for some reason. Your body just froze and you were thankful it did so. Just mere seconds passed by before you heard a scream coming from the corner. It was a man's scream, but you knew it wasn't Ayato.

Gathering all the courage you could muster, you slowly turned around the corner, ignoring your brain's pleads to just run back home. The sight that met you nearly caused you to faint right then and there. A man's bloody body laid on the ground in front of you and hovering over it was Ayato who looked about ready to take a bite out of the man's flesh. Blood was already stained across his mouth. You clapped a hand over your mouth to prevent the scream that was begging to erupt from your chest, but it was too late. He had already heard you.

"(Y/N)?" he asked, fear and worry clearly noticeable in his voice.

Your brain was screaming at you to run, but your body had different intentions. Slowly walking over to him as if you were in a trance, you tried to make sense of this. How could the man you love so much turn out to be a... Ghoul?

"H-how?" you asked with a quivering voice.

"Please, (Y/N), you need to leave," he told you, his face looking down. Not once since you appeared did he dare to look at you.

"Look at me," you demanded.

You needed to see that face of his; that face that would remind you of the Ayato you knew and not this... this stranger who was a killer. Once he looked up at you, you would see that sweet and moody looking face of his that would remind you that this all had to be a bad dream. That he was still the man you loved.

"I-I can't."

"Look at me!" you screamed, trying desperately to hold back your tears that threatened to fall.

In an instant, his head shot up. His eyes... His beautiful blue eyes that you used to adore so much were gone and instead replaced with these crimson red ones that looked as if they hungered for nothing but flesh. It wasn't a dream. He really was a ghoul. Taking a step back, you shook your head as if you could make everything go away. Unsurprisingly, it didn't work.

"You need to leave," he told you with a pained expression on his face.

You shook your head, unable to form coherent words at this point. Despite all this, you couldn't just leave him... Deep down he was still the Ayato you loved so much. Perhaps, though, a little deeper than you thought.

"I can't hold back much longer! Leave!" he roared.

As if a sudden wave of inhumanity washed over him, his kagune suddenly protruded from his body as he continued to roar. He dug his fingernails into the pavement to try and stop himself from moving. The sound of his nails scraping against the hard pavement produced a horrible sound that sent shivers down your spine.

"LEAVE!" he screamed once again.

Finally realizing just how much danger you were in, you didn't dare hesitate again. You sprinted as fast as you could away from Ayato, your mind so focussed on getting away that you couldn't even focus on where you were going. Before long, you had found yourself back at your house. It was hardly the safest place to hide from him, but you had nowhere else to go. By morning, you would pack your things and leave if he didn't first. Whatever it took to get away from him.

Reaching your room, you curled up into a ball and just sat there. No tears escaped your eyes. No, you were too shocked to even cry. How could you have not known that Ayato was a ghoul after all this time? There had to be signs. But... he always ate normal food with you and never once did he ever try harming you. Despite how well he did putting up his disguise, you still felt like a complete and utter fool.

Suddenly, you heard the front door of your house begin to creak open. So he was back and calmed down. You wanted to exit your room and go greet him to try to pretend that this night never happened, but something stopped you. Something about this felt off.

"Oh, (Y/N)," he called.

The second you heard his voice, you froze. It was definitely his voice, but something was different about it. It sounded more... sinister.

Making a split second decision, you quickly and quietly darted into your closet to hide. Ayato wasn't right - he wasn't the normal Ayato you knew. This was his monster side.

"Oh, don't hide from me, darling. I know you're here. I can smell you."

Even though you tried to keep your body still, it was shaking on its own accord. You weren't just scared, you were absolutely terrified. This can't be happening, this can't be happening, was all you could think.

The scream you've been trying to keep in this whole entire time finally erupted from your throat when the closet door was suddenly thrown open to reveal Ayato and those crimson eyes of his. Before you could react, he grabbed your arm and roughly tugged you out. In just seconds, he had your body and hands pinned against the wall. He gripped your hands tightly while his body was pressed so close against you that you could feel every breath he took.

"I've been craving for your flesh for so long now," he whispered.

You quickly shut your eyes tightly as his head leaned down towards your neck, bracing for the pain to come when he ripped the flesh away with his teeth. To your surprise, that pain never came. Instead, you felt his tongue lick all the way up your neck until it reached your face. His tongue delicately licked your bottom lip, earning a whimper of fear from you.

"There's no need to be afraid, (Y/N)," he told you, his lips only inches away from yours. "You'll soon be mine forever..."