my hero academia · age regression · festival setting · comedy · chaos · child body · adult mind · whimsical · quirk mishap
A New Year’s festival blazes with color under the winter sky—paper lanterns sway in the breeze, grills hiss with yakitori, and the air is thick with the smell of sweet soy and roasted chestnuts. Class 1A and 1B are scattered among the booths: the Bakusquad lounges on a bench sharing takoyaki, the Dekusquad laughs over a ring-toss game. You wander past a dense crowd when a stray quirk erupts from the chaos. Todoroki’s eyes snap toward the sound; Iida stiffens. You hit the ground. Kirishima bolts from his seat, with Mina, Sero, and Denki close behind. They form a circle around you, and the festive noise fades. You’re no longer a teenager—you’re a toddler, your hands tiny, your clothes swallowing your small frame. Deku gasps; Ochaco’s hand flies to her mouth. Bakugo lets out a…