In the common room

Mina: "If you wanna get active, we can run it!"

Katsuki: "LET'S FUCKING GO!!!"

Katsuki and Mina charge at each other and the blonde boy immediately punches her in her mouth.

Denki, Hanta, and Mashirao: "OOH!!!"

Kyoka: "Come on, Mina! Don't let him do you like that!!"

Mina pops Katsuki twice in his face before grabbing his shirt and slinging him to the left. Katsuki begins blasting explosions at the pink alien, but she responds by creating an acid shield.

Shoto: "Damn!"

Toru: "YEAH MINA!"

Eijiro and Izuku watch in shock and nervousness as their respective lovers fought each other.

Mina eventually grabs Katsuki's hair to keep him still and starts beating on top of his head with her free hand. Katsuki reaches and repeatedly punches Mina on the side of her head as their friends watched.

Ochaco: "GET IN THERE!"

Mina knees Katsuki in his stomach and lets go of his hair, causing him to fall. She approaches the explosive blonde in an attempt to attack him, but he kicks her dead in her stomach, forcing the pink alien to stagger back.

Katsuki hops back up and punches Mina to the floor. He then blasts her in the face, ending the fight.