Slice N' Dice (Mha x Sukuna male reader)

|Chapter 1: Y/n Osoroshi: Origin|

"Fuck you" talking
'Fuck you' thinking
"Special Attack: Fuck you" Ultimate moves

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2007, July 15th

Y/n was at a playground, sitting alone, with almost nobody there. That's because half the people that used to go there are too scared to go. The other half are those that Y/n injured. Y/n was 6 at the time when he just got his quirk a few weeks ago.

Suddenly, a sobbing noise grabbed Y/n's attention.  He turned his head to look, and He saw a green-haired boy, and another scarlet-haired boy of his age,  both getting jumped by 3 kids of the same age, one that looked like a sea urchin and had both explosive temper and quirk.

Greenie: "Why are you being so mean?" He sobs "You're making him cry kachaan, if you keep on hurting him, I'll uhh- I'll stop you myself!"

Sea Urchin: "You want to pretend to be a hero?" He slams his fists together making an explosion between them "You don't have a chance without a quirk, Deku!" He says mockingly.

Y/n: 'Somebody's getting beaten up... That looks fun!'

People like me have no reasons to be such dickheads other than their own pleasure, that's how I put it, people put it otherwise

The 3 of them were rushing to attack, but some pink-haired boy decided to join the party, uninvited. Bakugo thought he was about to protect Deku, but instead... Y/n kicked Izuku's face and then continued beating him to a pulp, even when he was on the floor crying. To bakugo's horror, Y/n Seemed to be enjoying and taking pleasure in each hit he landed, just then, Y/n directed all his hostility at bakugo and his friends. He was about to give them a whooping session.

...

As the noon sun shined brightly, 5 unconscious children with nasty cuts on their bodies were piled on top of each other in the playground.

2016, April 26th

Y/n was walking out of a supermarket, He looked at a train track where a villain with a mutant-type quirk was going berserk, towering slightly over 40 ft. A handful of heroes were dealing with him.

The First incident was in Qing Qing City, a baby was born radiating light. After that, people with supernatural abilities started popping up all over the earth, and science had yet to discover the reason behind the appearance of quirks. Before long, having a super ability was totally normal. As of today, 80% of the population possesses these quirks, each differentiating depending on certain quirk genes. But with that crime spiked intensively, so a new profession appeared, Heroes.

The villain knocked over a cell tower, which was going to crush some citizens, but fortunately for them, a hero caught it

Stranger 1: "Woah, way to go death arms"

Stranger 2: "The punching hero, I wish I had a quirk that made me super strong!"

A fence made of water stopped the citizens from getting closer, Y/n looked closer at him, he looked like a firefighter but with a marble in the middle of his face.

Stranger 2: "And the rescue specialist backdraft, he'll make sure you're okay"

Y/n was walking slowly towards the scene but that's when a greenie sped up past him

Y/n: 'It's Midoriya... heh, let's see where this chucklefuck is going' he thinks while following Midoriya

Stranger 3: "This guy must be pretty desperate to go berserk in the middle of the city, you know what happened?"