You were always going to your bsf, Oikawa, volleyball's match. Rn, you were at a volleyball camp as a helper just to watch him. After you come and talk to him and go back to help, his "friends" ask

Iwaizumi: she's here again? Kuroo: u know her?? Yūji: what a cutie ushijima: ... satori: Hey hey hey! I think Ushijima like her!