Quirkless, not powerless (HxHxMHA)

Killua sighed, hands in his pockets as he walked along the streets of the town he called home. The sharp scent of smoke hit his nose as he passed by an alley, which he ignored. It wasn't exactly uncommon in these parts. Almost there- Killua blinked, realizing his body was going numb. He glanced down, confused. Confusion turned to alarm as he realized his body was...disintegrating? Turning into a fine powder that was blowing away in the wind. The alarm faded into curiosity, as he realized...it didn't hurt. He watched his fingers turn from flesh to sand, then get whisked away by the wind. The decay crawled up his arms and legs, then his chest, then finally his head. His vision faded as his eyes turned grainy, then fell to the ground in a million microscopic particles.