Disclaimer: I don't own Kamen Rider Ryuki or One Piece
The King of the Pirates, Gold Roger had it all. Wealth, fame, and power, had all been his. He had obtained everything the world had to offer and his dying words drove countless souls to the seas.
"You want my treasure? You can have it. I left everything I gathered together in one place. Now you just have to find it."
These words lured men to the Grand Line in pursuit of dreams greater than they'd ever dared to imagine. This is the time known as the Great Pirate Era!
20 years later a scientist named Shiro Kanzaki created armor and weapons for the marines to use to end this era of piracy.
A year later just before the weapons were to be deployed Kanzaki took everything from his notes to the weapons themselves and disappeared.
1 year later...
A young man wearing a black coat walks out towards a village near an ocean. He has a sack over his shoulder. He smirks as he pulls out a item. It's crimson with a gold bird on it.
"It's time to go recruiting. After all, can't become the Pirate King without a proper crew."
Coming soon...
The Advent Pirates.