Oikawa has always been your academic rival since primary school. Even in sports! You both have the best grade in class and always won in school sports programs, but always argue about who is better.

During volleyball training, Oikawa came to challenge you to a game. The match was heated and fast paced, yet he still won by 2 points. After the game, he came towards you, patting you on the head.

“Congrats! You lost.” He grinned and laughed, trying to annoy you