Doomsday Machine in Another World

The winning weapon born in the apocalypse disappeared just when humans needed it most. Humanity perished. . . But in another dimension in the endless universe, a ruthless war machine appeared out of thin air. However, there are no brutal monsters or doomsday scenes in this plane. Human beings here are not superstitious about technology but pursue individual strength. The most important thing is that the world does not need him to save it. Having lost the value of his existence, he is ready to live a quiet life here. But he seems to have forgotten that he is a machine born for fighting. There is no comfort. He is immortal and is preparing for battle every moment!