I recommend the following two novels to you: "Return to the Sea": This is a military-war fantasy novel. It mainly tells the story of enemies from outer space dominating all of Earth's oceans and attacking our land. It was a story about how humans needed to rely on steel, gunpowder, and willpower to fight against powerful enemies. The length of the book was relatively long, which suited the preference of the black otaku ship. "Reality and Super Series": This is a sci-fi novel about interstellar civilizations. It mainly tells the story of Ankang accidentally transmigrating to the world of 2660 and seeing all kinds of strange biological armor and robots. It was also relatively long, and could satisfy the reading needs of the black otaku battleship. I hope you like my recommendation, Mwah ~😗