Starting a war? With Katsuki? How bold.

The guy took every competition seriously. So, when you decided it would be fun to throw a snowball at your boyfriend from behind - you didn't trigger a fight, no, you triggered a war.

He stopped in his tracks, turning to glance at you over his shoulder. His gaze looked like usual, but you just knew. "You have 10 seconds to run." He broke the silence, already crouching down to grab a handful of snow and begin making the snowballs to blow you up to hell (carefully).

And, when the time was up, he chased after you, already holding a bunch of snowballs to throw at you like a machine gun.

"Hah!" Katsuki caught up to you easily, now in front of you as he grinned fiercely and raised his hand high to bury you in snowballs. However...

"HUH-?!" He looked down and his widened eyes darted between his hands, the snowballs gone. Now, his palms were naturally pretty heated due to his Quirk... BUT TO MELT THE DAMN SNOWBALLS?!