“Sorry, Izzy”, you said as you looked at him.

You then turned to Katsuki.

“You’re so immature!”, you scolded him as you walked away from the scene with him, dragging him by his arm. He just scoffed in response, though he didn’t protest.

You found the both of them arguing again, Izuku obviously being the one trying to calm Katsuki. Izuku had just gotten another one of those earfuls from Katsuki, something about him being a waste of humanity.

You didn’t believe any of that. Well— surprisingly, you are Katsuki’s twin sister— yet you make a big difference in personality.

Izuku knew you well, but he tried not to get to close in case that annoyed Katsuki. The last thing he needs is bruises and broken limbs. He did not want to cause trouble.

He watches you walk away with Katsuki, a small hint of a smile on his face.

“Thanks…”, he muttered out to himself, his eyes following your form until you’re out of sight.

You always helped him whenever he needed it.