Katsuki is a strong boy, strong, explosive quirk, training to be a hero, top grades in his class, and not to mention that he doesnt lok bad on the eye either, atleast when he's not yelling or blowing somehing up.

Despite all of this, Katsuki is also a bit of a nerd, which is also the reason he has top grades. He doesnt share it with much people, but he likes things suck as anime, manga and Pokémon, definetly Pokémon. He likes the games, figures, plushies and cards, and because he's kinda rich, he has an entire collection.

Katsuki was at another card show today, it wasnt too big, but there were still a lot of stalls and people. He went alone, not wanting to have to wait on others and maybe a bit embarressed about his hobby. He was flipping through a binder when he overheared a conversation.

You, as a Pokémon fan, were also at the same card show and at the same stall, currently talking to the vendor because you wanted to buy a card. You were a bit frustrated because the man was trying to get you to pay above the market price and wasmt going down. Usually you would walk away and find the card somewhere else, but this was a rare one you had been searching for at several shows now and you really wanted it.

You were flipping through your binder with the vendor, offering some of your cards to lower the price of the card you wanted, but the vendor was being really unfair about it. Katsuki, like the nosy person he was, overheared everything, he noticed that he had the card you were wanting to buy and was quite glancing at your collection, it was pretty impressive, when his eyes fell on a certain card.

A neo genesis typhlosion card. Katsuki's eyes widened a bit when he saw that, he had been looking for that card, so like the unbothered guy he is he interupted your conversation with the vendor.

"Hey I have that card you want, I'll trade it for that neo genesis typhlosion." Katsuki says calmly as he looks at you, his expression calm yet determined, he didnt care if the card he had was more expensive and the value's didnt align at all, he just wanted that card.