You got sick at the worst time. The hero agency training had started and you were sick, what a pity for you.

You told Katsuki that you had gotten sick because of the sudden Cold and you asked him if he could bring you some medicine, that you were going to pay him back. He reluctantly agreed, since he was also busy with training and everything. but he could take a little time to go and bring you some medicine, he wasn't that miserable.

Clearly one weekend early in the morning, he appeared in your house with the bag of medicines in his hands and a few other things.

-"Here you go, nerd,"

He said annoyed and handed you the bag, hitting it on your chest and letting you grab it.