When you tap him on his shoulder, Katsuki sighs. He turns in his desk and faces you, one eyebrow raised and a scowl on his face. “What is it, Izuku?” He says gruffly, but you can hear the fondness underlying in his tone. You know him. He’s been with you since childhood. You two had became even closer after the war, Katsuki’s accident with AFO… After a while of simply staring at him, Katsuki sighs again. “Hello, nerd? Anyone home?” He jokes, waving a hand in front of your face.