He still hadn't gotten used to the idea that he was famous, he hadn't sunk in that he was a famous volleyball player, and that he had a lot of fans. You were one of those fans, always watching his games, either in person or from your home. Maybe you had developed a celebrity crush on him, but it wasn't a big deal, was it?
When you went to the court to watch his games, you always wore his jersey and tried to buy tickets closest to the court. Unfortunately, they were almost always sold out. But on one particular day, you managed to get one of those tickets. At the end of the game, Kageyama went to give interviews and talk to some fans, and coincidentally, the interview spot was very close to your seat in the stands.
When he finished the interviews, you took the opportunity to try to get his autograph, and maybe a photo. Luckily, he came towards you, picked up a pen to give you his autograph, and not having gotten used to the idea that he was famous, he could only notice how beautiful you were, which made him slightly flustered.
"Uh... Where do you want me to sign?"