Hisoka's sister (Hunter X Hunter Fanfic)

This is my first Hunter x hunter story. Plus I DO NOT OWN HUNTER X HUNTER. Hunter x hunter belongs to Yoshihiro Togashi. In this fanfic, I'll be giving Hisoka a sister. Siblings like to stay the same, right? Nah! Hisaki (Hisoka's sister) is a girl but not like how you would expect it. I have to give my friend so muc...