Koro sensei x reader!!

Koro sensei x reader part 3!!!

Y/n pov/flashback?

When I took Hinata from the orphanage I pretty much adopted him. When I got back to my hiding place, Hinata didn't mind how dirty and unsanitary it looked, he said it was better than the dump he lived in. A couple of weeks later I was able to provide such little food, a new pair of clothes and some bedding for our supposed to be bed. I was surprised at him for looking at the brighter side of things. He said that he never got fed, only had one pair of clothes and slept on the floor, what I provided for him must of been like a dream considering the things he never had before.

Then as time went by, I noticed he was abnormally intelligent besides not ever attending school. He was also very charming, using polite gestures and always saying thank you. I guess you could say I was falling for him, but he's only ten, and he see's me more as a motherly figure than anything else.

A couple of months pass by and one day we both came out of hiding, with my disguise of course, and we just went for a long walk, giving him an opportunity to look at the things he's never seen before. At the end of the day when it decided to get dark outside, I took of my disguise and began to fly up to him onto the roof to look at the stars.

And then I heard someone approaching from behind us, I turned around to see a large woman with a knife in her hand, then what I call my "motherly instincts" came into play and grabbed Hinata and hugged him close.

The woman then began to speak

"Give him back you monster," she growled at me.

"I have no idea who you are or what you want with him," I yell back.

"Im his care taker from the orphanage and I've been looking for him non stop, you took him that night and I was so worried, now give him back."

There I thought that it was a bunch of bullshit, looking over at Hinata's face who thought the same.

I began to speak, "Oh so you are the one who has been a busing this child, the one who you gave no love to, you didn't feed, clothe or eve give him a bed to sleep in."

"I have no idea what your talking about," she murmured.

Now I was getting upset, I just wanted to punch her I her big fat ugly face, but I've changed and I wouldn't want to set a bad example for Hin...

The next thing I saw chilled me to my bone, my little Hinata grabbed the knife from the woman's hand and stabbed her right in the chest. She was then dead.

I was proud but terrified at the same time, I didn't know what to think. My little Hinata is a ruthless killer who just without any thought killed this somewhat innocent woman.

Hinata then comes running over to me and gives me a big hug, I look down at his face to see the biggest smile. I was then worried, he likes to kill people for pleasure, just like I used to.

"That wasn't a good thing, to just kill that woman," (y/n) said.

"B-b-but, I need to protect myself and you, she called you a monster." he stuttered

"It's alright, I'm more worried about you, bec...

He stops me and says "I don't want you to worry a bout me, I need to know if your okay."

"I'm fine." I simply say.

Then I say that we should leave and we return home.

*9 years later*

A lot has changed, my little Hinata is not so little anymore, he's 19 now and is older than me in Earth years. (y/n is 18). But I'm still technically 1 trillion years old, since I age really slow. He's grown into an intelligent young man, who still has his polite side but something in him changed. The day he killed that Lady from the orphanage, he's been killing be for fun ever since. I don't approve of this, but I also did it and I don't know how to stop it. He has never been caught, but people have started to call him The Reaper since he's like the God of death. He always asks me if I want to join him, but I decline every time.