The Devil Empress And Invincible Queen|Kuroko's twin sister |knb x oc x haikyuu
Akaashi Keiji × Oc (On hiatus) Kuroko Sierra is Kuroko tetsuya's twin sister. She goes to fukurōdani academy. Where she plays vollyball and basketball, she is also the captain of both the teams because of her leader ship qualities. You can't say that Sierra is a prodigy because at first when she started playing the sp...