One Piece: Starting with the Immortal Rocks Pirates

Dimon was summoned to the pirate world as a demon, and the story begins on Beehive Island.
Fortunately, the demon's skills were powerful enough that he easily joined the Rocks Pirates.
The initial skill is to create the Elixir of Immortality, which grants the drinker the power of eternal life!
As a demon, Dimon can devour the undead, gaining their experience and knowledge to enhance himself.
If you consume a Devil Fruit, you can unlock even more powerful Devil skills!
The year was 1482, a time of great oppression before the Great Pirate Era. It all began with the immortal Rocks Pirates…