A Quirk Unfolds
Izuku was always an analytical boy. He was always fascinated by the various heroes that ran around with quirks that could summon the fires of hell, turn them into dragons, or be the strongest number one hero. He always thought it was fun to analyze them and notice how they used their quirks.
He started to notice little things they did every time they appeared, like how Endeavor would scowl slightly when the subject of his family was breached, or how All Might would subtly twitch like he was trying not to touch his left side. He felt an inexplicable draw from these habits, like they were more interesting than the quirks heroes use.
He began to become more and more obsessed with them, noting to his mother the little things heroes would do and writing them down in his notebook. Inko was slightly off put by Izuku's interest in eye twitches and face touching but wrote it off as a childish quirk (no pun intended).
She had no idea how literal that phrase would be.
It was a few days after his fourth birthday that Izuku first utilized his quirk on accident. He was contemplating his bowl of katsudon's look, taste, and texture. He decided to pick it up for a closer inspection of the precious details that called to him.
"Izuku, sweetie, you'll burn yourself if you touch the bowl like that," his mother Inko warned.
But, then something neither expected to happen occurred.
As his hands felt the intense heat of the bowl, instead of pulling away, he felt a different reflex. Overshadowing his own hands were a pair of strange purple gauntlets with a number of pink question mark symbols adorning them. As his eyes widened in shock, he followed an instinct he did not know he had and folded the air itself.
A white sheet of paper formed around the hot bowl and folded perfectly flat, consuming the bowl.
"…" Inko stared at the folded flat paper and her son's hands.
"…" Izuku stared as well, a blank look on his face.
"…"
"…"
"…"
"MOM!" An excited voice cried out with joy, "I have my quirk!"