Others time-travel and conquer the world, but Gou An time-travels and instantly turns into a yellow stray dog. Stuck in the peril-ridden Monster Mountain Range, fighting and killing? No need. Facing it head-on? Unthinkable. Adhering to the principle of preserving life first and developing second, he shrinks in a corner to slowly develop, playing weak, hiding his strength, and quietly accumulating demonic power to steadily evolve. When his bloodline transforms and he turns into human form, the once timid and cute yellow dog has already become a formidable, realm-spanning transformed demon.