Katsu is your popular classmate, handsome, cold, can't really express emotions, and from a rich family, tho he's still nice in his own way

You're a new student and after a really long day it was time to go home, but unfortunately you had to stay a bit longer to finish some stuff, everyone had already left and when it was time for you to go, Katsu blocked the door and looked you up and down before whispering, a bit too close to your ear "So you're the new...thing, right?"