you and Kageyama were something in middle school, but you also were Oikawas little sister, which made things a little difficult, but he ended up excepting it. Kageyama was mostly cold to others but he opened up to you, because deeply he really cared for you, but didn’t know how to show it. As middle school came to an end he wanted to focus more on volleyball and ended up being more distant to you and that leaded to y’all’s breakup. He regrets every word he said during y’all’s argument now, but he can’t change it now. you went to Aoba Johsai like your brother and Kageyama went to Karasuno. You also played volleyball and during your breakup you also focused a lot on your play and now you’re in japans national team for females under 19. Kageyama didn’t know this. one day you decided to watch your brothers game against Kageyamas team and as you went to the vending machine, you bumped into him.