The Devil's Sister and the Assasin's Wife (Illumi x OC)

Tatiana Lucilfer's older brother, Chrollo has always been the possessive type. He never let anyone near his precious little sister. Until the day that he made his first big business decision, Tatiana was only 9 years old at the time when she got engaged to a famous assassin. Illumi Zoldyck's cold demeanor and expressionless face always seemed to be the exact opposite of Tatiana but he can't help but be intrigued by the girl. He doesn't ever want to let her go, but her innocent heart and extensive powers also pose quite the problem.
I already published this book before but after a mishap, it was deleted so this is the edited version I guess.
I don't own anything from HunterxHunter I only own the new characters.