Aoba Seragaki x Male reader one shots [Completed]

Deadly Desire (Yandere Sly Blue x Male reader)

(Aoba's pov)

My headaches have been getting stronger and stronger lately. When I'm around (y/n), my headaches hurt more than usual. I have the power of Scrap, but it's never been like this until a few days ago. I was going to see him to talk about this, since I have a feeling about the meaning of these strong headaches. I went to his house and I knocked on his door. He opened the door, looking cheerful as usual. "Aoba! Come on in!" He said happily.

I went into his house and sat on the sofa, and a quick bolt of pain hit my head. "Ack!"

(Y/n) came into the living room, and saw me jolt. "Are you okay?" He asked "You've been getting bad headaches lately."

"Yeah, and the pills aren't working either." I said pulling out more pain killers.

He had some tea ready, and he sat down on the sofa next to me. "I'm getting worried Aoba. Is it your power?" He asked worridly.

"I think so. Usually I only get headaches after I use Scrap, but when I'm with you, it hurts more." I said.

"When you're with me?" He asked.

"I have been spending a lot of time with you lately, and that's what I'm afraid of." I said. "Since Sly Blue is my desire, he may have a strong desire for you, but he's not normally like that. His desire is usually for destruction and not lust."

"Maybe he has a lust to destroy me since you're in my view so much." Said (y/n).

"You thi-"

Suddenly, the pain in my head was unbearable. "I'm going to destroy his mind."

It was Sly Blue. "Aoba, are you okay?!" Gasped (y/n).

"Save yourself! Who knows what will happen from here!" I screamed.

((Y/n)'s pov)

What's going on with Aoba?! He collapsed to the ground and then, he was on his hands and knees, motionless. "A-Aoba?" I said quietly.

He stood up in front of me, and instead of his yellow brown colored eyes, they were bright yellow. It was Sly Blue. "You." I said, with disgust in my voice.

"I see you at last." Said Sly.

"You're not supposed to be lust." I said.

"I have a lust for destroying you." He said.

"I won't let you destroy me. I have a strong mind that is unbreakable."

That was kind of an exaggeration though. "We'll see how strong your mind is (y/n)." Sly sneered at me.

Off guard, he used Scrap on me....

(Sly Blue's pov)

I had strong feelings for him, and knowing him, he'll probably try to resist. So I didn't hesitate to destroy his mind. I went into his head, and I damaged him. His screams of agony, how they were music to my ears. I love his pained expression, and I want more. I continued to destroy his mind until he was no longer moving. He's still alive, but a broken soul. And he was mine for good. But deep in this body of mine, I heard a voice screaming, "Don't hurt him! What has he ever done to you?!"

Whatever. I should just take over this body now. But first...

(Aoba's pov)

I snapped back, but I was too late. Sly Blue broke (y/n). "Hey, snap out of it!" I cried.

He refused to do anything. My power has gone too far. My headache came back, and it was stronger than it was a while ago. I lost my good friend, all because of this horrible power. As I cried for (y/n)'s broken consciousness, I felt Sly trying to take over my body again. Never again I'll see (y/n)'s sweet smile, his friendly attitude, his happy go lucky attitude. Everything. Soon...

(No one's pov)

Sly Blue was then able to permanently take over Aoba's body so he could have you all to himself. Every once in a while, Aoba tried to call out, but Sly just shoved it off. He looked over your broken body and you were his world now. You couldn't fight back or escape from your broken mind. It was everywhere. Neither living, or dead. Just broken.

[Sorry it's so short. I guess I never saw Sly Blue as a yandere, but I wanted to try it out.]