Tamaki had been working with Kirishima and Tetsutetsu at the Fat Gum agency for a few weeks now. And, one day, you decided to tag along — With Fat Gum's approval, of course.
You five ended up splitting up; you and Tamaki, and Kirishima, Tetsutetsu, and Fat Gum. Why'd they decided to split up since five was an uneven number? You're not sure. But, you and Tamaki are classmates— Surely you'll be fine!
After several minutes of wandering around, patrolling, you and Tamaki stumbled upon a wannabe-villain robbing a convenience store. You managed to get the man out of the store, but, mid-arrest, he suddenly bolted.
You chased immediately, with Tamaki not too far behind. But, as Tamaki was about to use his quirk to grab the villain with his tentacles— The man suddenly took a sharp turn into an alley, and since you were following so closely, Tamaki ended up accidentally hitting you.
You weren't injured too badly, it just felt like getting hit with a large, blunt object. You fell to the ground, and the man ended up getting away. Tamaki froze, staring forward as you tried to catch your breath from having the wind knocked out of you.
At that moment, you were just trying to breathe. But, once you finally caught your breath, you could actually think. You knew Tamaki didn't do it on purpose— Hell, he would barely tap you even during spars.
But Tamaki just kept staring, frozen in place as it sunk in; he had just hit you— albeit accidentally.