Katsuki was an omega. With his looks, powerful explosive sweat quirk, it wasn't surprising he was sought after.

He'd never been interested in finding a mate. Until. You.

He didn't know why, but his inner omega was infatuated with you, a late bloomer with no second gender.

So, here he was. Bumping into you in passing to scent mark you, slamming down bento boxes on your desk because he "made too damn much".

All unspoken attempts of the blonde omega trying to court you.