Wild Boy's Plane Life

A wild boy who grew up in a mountain village. His father is a carpenter, but he is good at martial arts. His mother is a peasant woman, but she has good medical skills. Under the influence of his ears and eyes, he taught him a genius with both medicine and martial arts under his careful guidance. While hunting in the mountains, he met the eldest lady by chance and outsmarted a black bear, and was saved by the eldest lady. While escaping with the eldest lady, they fell into a cave, accidentally obtained a treasure from another world, and recognized their owner as a spiritual pet from another world. In order to repay the favor of saving her life, the eldest lady decided to take the wild boy out of the mountains. "Are you willing to go out into the mountains with me?" "I do." The question and answer started the turning of the gears of fate. After the wild boy came out, he stole the boss's empire and his luck. Discovering that his parents have a good identity, he uncovers a shocking case and successfully defends his grandfather, a miracle doctor. Build a mechanical stand-in, build a mechanical bodyguard, accept ancient monsters as your own sword spirit, and finally ascend to another world...