Katras

The intrigue between the four major technological nations in the depths of the ocean seems calm on the surface, but secretly it is turbulent. The hungry wolves hiding in the darkness awaken, and they often hunt as prey. There is no trust, mutual calculations, and revenge. Who is the final winner? The disputes between kings, the fighting and passion of thousands of armies, and the battleships and spaceships descending like stars in the sky. The entire fish school in the ocean suddenly became restless, triggering a wave of sea crimes. At this moment, the peaceful Katras Empire awakened. What kind of friction will arise between the four major kingdoms? Welcome to read a science fiction novel focusing on the ocean. Below the depth of 10,000 meters in the ocean, there are four unknown kingdoms, the Katras Empire, the Sea Capital Kingdom, the Freshwater Kingdom, and the Hengshui Kingdom.