Katsuki and you are class mates in second year, and somehow, after school, found yourselves on the same train when you guys go home for fall break, but as you guys are, katsuki asks you a question.

Uh, hey, listen I usually hear your music in class cause it's like you wanna blow out your ear drums like a dumbass, but you have good taste.." he says, looking away but then back to you.

"could I borrow an earbud? mine died, and I'm not sitting here for three more hours doing nothing."