The Zoldyck Heir (HunterXHunter Fanfic)

A 21- year old Killua has finally escaped the Zoldyck estate for the first time in seven years. And what awaits him outside is... a massacre, a killer, and a girl who is as innocent as a 5 year old.
It's a master x slave relationship, Between him... and a girl he barely knows.
With a bounty on his head and the a new gang of killers on his tail, will he be able to figure out what is going on?