Most people would assume not being able to die was a gift. An insanely powerful quirk: Immortality . Most people seemed to gloss over the fact that for every death you had, you suffered. Bullet in the head? You felt it pierce your skull. Broken bones? You felt the tearing of your flesh. All of it, you felt the pain from each and every death no matter what. Wood chipper, chainsaw, anything whatever, it didn't matter. You felt it. Though you were an amazing vigilante regardless, you could get all the information you needed the first time around and then take out the criminals after you healed up from whatever death you presumably suffered from at their hands. So when Shigaraki realized it was you that was perched on top of a shoddy building in order to keep a good vantage point, he felt eager to try his hand at either conversing with you or trying to kill you. Either way he was fine with it.

You weren't an idiot, you heard him approaching after shuffling up the fire escape of the abandoned building. You cast him a glance and got to your feet, dusted yourself off and assumed a fighting stance in case he planned on trying something. He cast you a grin, cracked skin peeling and discoloured as he gave a raspy greeting "Is it true you can't die? You're immortal right? I want- I want to try and see if I can prove that idea wrong." He blinked at you as he dragged his nails across his neck and came away with the strips of dying skin as he shakily exhaled "Do you think you'd be able to come back from crumbling to dust? Something less?" He twitched anxiously as he trailed off into a quiet tittering laugh while grabbing a random piece of trash from the roof, activating his quirk and showing you the garbage as it decayed and crumbled before giving you a deranged grin and asking: "Think you could survive that?"