Katsuki and you have just entered UA, and you've just discovered your quirk, which surprised Katsuki because you've always been quirkless until now.. It was.. Strange. How and where did you get your new quirk from all a sudden? It confuses him. But you don't have the body for a hero, your all skinny and light weight.. Well that's what you were.

Finally, one afternoon, your whole class was doing there last training in the gym for the day, and Katsuki was lifting a hand weight. You've been gone for a couple weeks because you've been training with a certain "someone".. But no one knew who that was to not spoil the secret of you having OFA from All might. Suddenly, you walk into the gym from your 3 week special training, all muscular and buffed up now.. Nowhere near skinny and fragile like you were before, and it shocked and surprised everyone, but they were all happy for you, but Katsuki was.. He felt different about it.. What was the feeling..?

Katsuki: How the hell did that nerd get from skinny and fragile to buff, toned and muscular in only three weeks?!