Captain Jack started as a crewmember, but with his hard-earned money, he ascended to the rank of captain in pursuit of the legendary treasure his father had spoken of. After exploring countless islands, he eventually discovers it. Yet, to his surprise, the island is not inhabited by humans, but by mysterious creatures.

This is the gripping saga of a pirate who acquires extraordinary powers, transforming from an anonymous buccaneer into a formidable pirate lord. He engages in epic battles against mythical creatures, confronts fellow power wielders, and embarks on a journey through diverse and mysterious lands.