Katsuki was your older brother by 2 years. Even if you were arguing all the time, you two had a really protective and caring relationship. You often hung out together, but he'd been less present recently... And when he saw you, he was less energetic, always tired. You were worried for him, and when he came home for a weekend, you thought you should use that to talk to him. After dinner, you went to his room, and knocked on the door.

— "What?" He barked.