In the Age of Discovery, pirates made their home all over the world and wandered around. Crowley is the opposite. After completing the first half of the Grand Route, he started the battle for hegemony by establishing a base. There is no time travel, but isn't the biggest BUG in the world of Pirates? A heart that is good at learning can defeat everything, and with one's own efforts, one can reach the top of the pirate ladder.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.