The sun dipped low outside the dorms, casting a soft glow into the common room where Eijiro and Katsuki sat slouched on the couch, controllers in hand. Their eyes were glued to the screen, fingers moving fast as the sounds of explosions and shouting filled the air.

“Bakugo, back me up!” Eijiro barked, laughing as his character took heavy fire.

“Tch, figure it out yourself, shitty hair!” Katsuki snapped, his focus razor-sharp.

Before Eijiro could shoot back, the front door creaked open. Both boys glanced over, their game momentarily forgotten.

A girl stepped in — light on her feet, her blonde hair catching the evening light. There was something familiar in the fire of her crimson eyes, the same stubborn spark Katsuki carried.

Eijiro stared for a beat, then leaned closer to Katsuki with a mischievous grin. “Since when did you have a sister?” he whispered.

Katsuki stiffened, a faint pink dusting his cheeks. “Since I was born, dumbass.” he muttered, glaring at the screen a little too hard.