Katsuki rolled his eyes and muted the call.
"SERO IS THAT YOU?!"
S: "N-No! It's Kichi-"
"....That bitch.."
He stomped over to her room-OH GOD-
Ok but Sero how do you even know that!? Oh right-you heard her singing...um...her dorm's literally a solid ten doors down from yours sweetie-HOW THE HELL DID YOU HEAR THAT!?
Before he could even get there the music was turned off-she was honest-to-god just doing it in an attempt to get Sero to shut his goddamned music off.