Start with a Dreadnought and Open Free Trade

(No heroine or single heroine + sailing + a little bit of Cthulhu + extraordinary + open free trade + madness) In this world with no continents and only islands, the world is maintained entirely by sea transportation. As the captain of the Lingfeng, Chu Tiankuo believed that he shouldered the important responsibility of the Chu family's rise and fall, and resolutely took over the Chu family's business that had been passed down from generation to generation - maritime trade. What? Someone dares not to buy my goods! Look at my 343mm caliber main gun and say it again! Chu Tiankuo: Today, I will let you know what free trade is! This is the story of a captain and his crew who gradually went crazy on the boundless sea.