Build a Mecha in a Fantasy World

This is a fantasy world. As long as you practice cultivation, you can live forever and enjoy freedom in the world, or achieve great ambitions and hegemony. As for me, I am a sect's weapon refiner, the soul-piercing type. I don't have much, I just want to build some mechas or something, it's not too much~ This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.