Gao Wu: I Have a Realm Door

Starry sky mechas line up to patrol the frontier, and abyssal gods and demons whisper from the void. This is a future where technology and ancient weapons, machinery and divine power collide fiercely. The alien demons tear apart the sea of ​​stars, and the behemoths of the abyss overthrow coastal cities. Steel is the defense line of human civilization, and the martial arts body is the only way for mortals to defy nature and change their lives. Lu Qiu awakened a door to a secret realm and absorbed countless resources. There are five grooves on the door. Every time a groove gem is obtained, the door will give Lu Qiu a new ability. Others study hard just to get into a martial arts university, and rich kids spend huge sums of money to buy mechas to arm themselves. Only Lu Qiu walks in the abyss, hunting gods, demons, and grabbing divine materials. Above the atmosphere, the cannon light of the humanoid mecha tore through the sky. His body covered with black scales crushed meteors. His scarlet eyes looked at the demigod dragon entrenched outside the territory and whispered softly: "Whether it's a mecha or a god or a demon, from today onwards, nothing in the world can stop me." Many years later, he crossed the sea of ​​stars and conquered all races alone.