MTL - Never Fade Skull FlagChapter 627 rule?

This is a world where civilization and savagery, rudeness and grace coexist,The flag of the skeleton is flying,The smell of gunpowder lingers,Here are coins and muskets!Here are women and rum!Sail!Towards freedom!PS: This article is inspired by the Pirates of the Caribbean, no empire hegemony, and aims to enjoy the wonderful adventure brought by the romantic ocean! - Description from MTLNovel