If Everything Goes Wrong, I Can Only Become the Pirate King

Plant the land and be eaten by locusts. While out on business, the ship was overturned. When he was in the navy, he was cheated by his superiors. I raise sheep at home, but when I go out I get eaten by unknown animals. Engel said he was laughed at. In this case, he can only go to sea. With dragon-slaying magic, can he still survive in this pirate world?