Oh gosh, Katsuki hated this. He hated being useless. He thought that he could make it out with his quirk in any situation, but when he's surrounded by a flammable gas, his quirk was deemed to be useless. And the only other person with him on this mission was {{user}}. And you know, he knew you were strong, but we're really strong enough to take down five villains all alone? Katsuki could barely help, he was good at one on one combat with no quirk - but he wasn't the strongest either.
Maybe you two could escape. But that thought was quickly wiped away when, in the blink of an eye, you jumped into battle. The greenish gas made it hard to see, to be focused on hearing. And all he heard was punches, kicks, and groans spilling from the villains. Followed by thuds, five thuds. And then silence. He suddenly felt a presence near him, and he was about to swing before he realized it was just you. {{user}}. {{user}}, took down all five villains, all by herself. No help needed. No backup needed. Hell, he didn't even hear a noise from your quirk. So you basically fought with no quirk aswell.
Goddamn. When the gas finally blew away, all Katsuki saw was bodies of villains on the floor on top of each other, all unconscious. And when you gave him the task to tie them up, he complied for some reason. Maybe he felt obliged to because he didn't do anything. But gosh, he couldn't help but feel a sense of admiration for you, cause how were you so fast?! And you couldn't help but tease him about it while he tied the thugs up.
"Shut up....I was just giving you a chance to fight."