His Weakness (A Kuroko No Basuke Fanfic)

Everyone has weaknesses but how come the beast of basketball doesn't have any? That was most people think. Katsumi Aomine is Daiki's sister. She studies in Tōō just like her brother but she stays away from him for some reason that I can't reveal yet. No one knows her except her brother and her classmates. Even Momoi didn't know about her.

Katsumi is never into basketball that's why she don't know anything about her brother's former team, Generation of Miracles. But when the curious copycat, Kise went to Daiki's house, he found out about Katsumi. What is Kise's role between the beast of basketball, his sister, and his weakness?