Izuku Midoriya was a happy child, he had a loving mother and great friends. This was until the day he was diagnosed quirkless by his doctor, that's when his life started to go downhill. His "friends" all abandoned him and spread the word that Midoriya didn't have a quirk, that he was a "less evolved human". Then the bullying started, Midoriya was harassed and beaten daily, the kids taking a liking to the nickname "Deku" which mean useless. Midoriya endured though, he kept going strong and still wanted to be a hero in light of all of the hate. Around the same time his mother became distant and cold, never violent though. All this was when Izuku was only 4 years old, as you can imagine it gets worse over time, the bullies grew up and were told by society that quirkless people were weak and less human than the quirked.
Fast forward 9 years and we can see Izuku getting ready for the last week of middle school, before the 4 month break in between the end of middle school and the start of the UA entrance exams. At this point in Izuku's life, he only wanted to go to UA to get away from his cold household and the bully's at Aldera middle , his heart wasn't in the hero profession anymore. Not that his bully's new that, when in public or Infront of his mom he puts up a innocent front up to hide his darkness. Today would change things drastically, as Izuku was walking out of the class room later than everyone else, hoping that they would leave him alone today. He gets to round the corner out of the front gate, then he gets pushed from behind stumbling and getting up he says " hey! What was that for!?" after he says this he hears two laughs and turns to see bakugos two cronies weirdly enough, without the loud blond today. "Since Katsuki is not here today we have decided todays the day you will feel real pain and not some little punk shit". Bold words, if Katsuki ever heard that long fingered freak says that head blast him to high hell. Wasting no time the two boys both rush to attack Izuku, the plump winged lackey flying at him, and the other lackey extending his fingers at high speed. Izuku quickly rolls out of the way, but he still gets hit and in a bad spot too. What would have been a speedy poke to Izuku's neck turned out to hit the boy right in his left eye, effectively gouging his left eye out. The boys stumbles and chocked back a scream, Izuku thought no-one would ever go this far just for their bigoted beliefs of quirkism. Now here he is with one eye missing and bleeding on the ground, Izuku can feel his hatred for the two… no for this society so focused on quirks it starts to bubble inside him. It makes Izuku …Itchy, he's on the ground scratching all over his neck and face to get the feeling out, His mind is screaming out for blood!
As Izuku is writhing on the floor, the two lackeys look at him and come closer the finger kids says " Aw, useless Deku has a little itch, Hehe" his ugly snort reaches Izuku's ears and he slowly stands up, head facing the ground and says "You two and this stupid hero society has pushed me down long enough". His mind is screaming at him to touch the two boys and kill them and this wretched society! Izuku bolts up and rushes the finger lackey grabbing him by his arm, the kid feels excruciating pain and pushes Izuku off. All 3 kids look at the finger lackeys arm in stunned silence as his arm starts to turn into ash, in a matter of moments his arm continues falling apart and at the 3 second mark it is nothing more than a stump. That's when the screaming started, Izuku still had murder for both the kids on his mind, that's when a particle of ash from the other boys arm blows in the wind and touches the other boys wing quickly spreading to the other. Izuku's analytical mind has already picked up on his seemingly new quirk. "I have the power to disintegrate anything I touch and let is spread if I wish, the perfect weapon to bring down this wretched society" Izuku thinks to himself. He then grins and says to the two boys " How does it feel now that your both quirkless, You have no wings and you are missing a whole arm with no fingers", Izuku cackles as both kids tried to run. Izuku pounced and slapped the winged boy on his forehead and the finger lackey on the bottom of his legs, to make sure his suffering is prolonged. The winged boy falls to the ground seizing and dies 2 seconds later, nothing but ash, the finger lackey continues screaming but it is just music to Izuku's ears. Izuku looks at the place that caused him so much trouble and turmoil, "Aldera middle, oh how I will love to watch you crumble to my feet" as he finished saying his goodbye to the hell hole, he places his whole hand on the side of a wall and will the school to crumble slowly.
Izuku hears sirens in the distance and decides to skedaddle into a nearby alley to watch the crumbling safely away from the hero's and cops. While in the safety in the alley izuku spaces out and reflects on what he just did. "I just killed two bullies and turned Aldera middle school into a pile of dust, and I don't feel any remorse… Why should I? Speaking of eye, the missing socket is getting itchy" Izuku thinks to himself. What Izuku did not expect was for Izuku to feel a energy drain and his missing eye to grow back. "what - what the fuck? Did I just heal myself?. What could be the explanation". Izuku starts muttering to himself trying to figure out what exactly his quirk is, he decides to dust a trash can in the alley way and feels the missing energy come back. "OH I got it!, my quirk is some kind of mass conversion, I can dust objects and store their energy to heal, now what to name my quirk… how about Dust touch"