In One Piece: From the Start, I Spend Ten Years as a Slave

[Vampire Prince + Grants the Blood Clan Mythical Zoan Abilities + Enslaves Every Faction, Including the Shichibukai, Pirates, Marine Headquarters, and Revolutionary Army] Draculas S. Nall was a slave captured by the Celestial Dragons as a child and taken to Mary Geoise. After struggling to survive for ten years, he was mercilessly shot in the head during an entertainment event held by the Celestial Dragons. But disaster turned to fortune: just as his corpse was about to rot, he obtained a Vampire System. And so a Blood Clan Prince who wanted nothing more than to enslave the Celestial Dragons was born!