best action anime with a deep story

Duncan Abnomar was transmigrated to a magical world. Most of the lands of the world had sunken, and the surviving humans could only live on islands. Due to an unknown reason, the world was also contaminated and strange phenomena and things would randomly appear. Humans had developed steam gear technology, and the islands were connected through boats. They survived by studying strange phenomena that happened all around the world. However, as the captain of a scary-looking ghost ship, Duncan was facing a huge challenge. "How the heck do I steer this ship?" Highly recommended by experienced editor: MC is transmigrated to a world mostly covered in water and far from civilization. He becomes the captain of the ghost ship, the 'Homeloss'. He steers through the fog and adventures through the broken world and the unknown deep sea. As he discovers the ruins of abandoned civilization, he would also stumble into the war between the strange phenomena and the devil gods. The story takes place in a combination of ocean and Chutly mythology world, a new and interesting background. It’s an attractive story to read due to the author’s sense of humor and mastery over the ambiance of the story. --------------- Another-style introduction: "On that day, a thick fog engulfed everything. On that day, he became the captain of a ghost ship. On that day, he crossed the dense fog and faced a completely overturned and shattered world – the former order was completely gone, and peculiar phenomena dominated the endless seas beyond civilized society. The island city-states and the fleets challenging the sea have become the only lights of civilization left, while the shadows of old days still lurk in the deep sea, waiting to devour this dying world again. But for the new captain, there's only one pressing question – Does anyone know how to sail this damn ship?!"