I just realized that Oikawa is probably the most harassed character in Haikyuu. Like you got ushijima telling him to go to shiratorizawa therefore shoving salt in his wound of never getting into nationals, you've got kageyama asking him how to serve therefore shoving more salt in his other wound of not being born a genius. He also has no butt so his bones must hurt when he sits. So his own butt even harasses him. That's just sad