Izuku hated his quirk. Though, that probably was what his quirk needed to become so powerful. He knew just how much his emotions impacted it.

Izuku Midoriya discovered his quirk in an unfortunate way. He was seven when he first saw it, right in the alley. A purple checkered entity, frothing at the mouth, rubbing at its legs to keep itself clean. Izuku stayed where he was, from the corner of the alley. 'What is he doing there? I wonder what his quirk is. His quirk is a mutation, but-' His thoughts quickly devolved into a muttering storm.

Izuku did not see the villain behind him.

His thoughts were cut off when he felt the hand on his shoulder, and he jerked his head back, expecting Bakugo, and being rather suprised when it was a young woman with a kind, too wide smile. "Hey there kiddo! You alright? You looked to be really focused on something in the alley." Midoriya replied quickly, "I saw someone with a neat quirk! I think it was just a normal mutation but it might be a combination or even a transformation quirk!" The kind woman smiled.

"That sounds really interesting kid! Say, you sound like you're really interested by quirks, so do you wanna hear mine?" Midoriya nodded and smiled, practically having the light of the sun in his grin. "Well, it's a pretty weak quirk, I wouldn't want to bore you." The boy shook his head and went to reassure her. "No way! There's no such thing as a weak quirk! I bet its something really cool!"

The woman with the too wide smiled looked at him. Izuku could no longer move. "Heh. Hows that for a cool quirk, kid? I can paralyze anyone I look in the eyes. Now, we're gonna have a little bit of fun in that back alley. You got that?" Of course, Izuku could not move or talk, so all he did was stand still. She picked up Izuku and then walked into the alley with malicious intentions.

Izuku was filled with new emotions. Things he had not felt before, yet still simple and powerful emotions. Hate and rage. He had been manipulated. He always got picked on, or hurt, or attacked, just because he was weak. He hated himself for being manipulated, and being weak.

That was when he felt it. He hit the ground, no longer paralyzed, and looked on in fear. The man with checkerboard skin and frothing mouth, had charged and knocked the woman to the wall, its left hand on her throat, its right raised to punch. Then, just as Midoriya saw them, the man punched, and he heard something shatter. A purple mist surrounding the man and the woman, nearly engulfing them in smoke. That was when he heard the screaming. The woman was choking on something, struggling to cry out, say something, anything to save herself, but it was too late. Within thirty seconds, the woman with the too wide smile, and malicious intentions, was nothing more that a rotted corpse, covered in boils.

The man turned to Izuku and stalked towards him, each step slow and methodical. It was the first real sight of the man he had seen. Purple checkerboard skin, blackish blue pauldrons, and a purple cape. He had bright yellow bulbs on his hands. When the man had reached Izuku, he put his hands towards Izuku, and encompassed him fully, disolving into Izuku. That was when a realization hit him. This was no man. It was his quirk, plain and simple, in a physical form. This quirk, had been used for murder, and Izuku knew this with every atom in his being.

He walked home alone, and went to bed.

quick breakdown of this stand i copy and pasted from the JoJo wiki:

Purple Haze is an unstable Stand that contains a particularly deadly, flesh-eating virus in each of the three bulbs on each of its hands. When a bulb breaks, usually because Purple Haze punches something, the virus is released and surrounds the Stand. Anything that enters its range is infected, and an adult human being will melt into organic goo within 30 seconds as the virus rapidly multiplies within their body, overrides their metabolic functions and makes them rot from the inside.

Thats all from the wiki, but here is a quick explanation of a stand:

representation of persons fighting spirit, when it is injured its user is too, and some stands can develop from their usual forms into stronger, more advanced ones.

Next time I get off my ass and update, green boi will be 14, 10 months before le entrance exam.