Li Yunfei, a marine master, traveled through the late Ming Dynasty. When he opened his eyes, he saw a storm at sea, and the ship was destroyed and people died. He was kidnapped by pirates and used his modern knowledge of gunpowder to blow up the enemy ship and escape! Survival on a deserted island meets a beauty, a fishing village rises to build a fleet, and with the help of modern navigation knowledge, he grows from a commoner to a maritime overlord, fights against Japanese pirates, competes with the Ming Dynasty, and confronts Western colonists. The southeast coast is the core battlefield, involving Japan, Southeast Asia (Malacca, Luzon), and European colonies (Macau, Batavia), and finally establishes a new maritime order.