I Raise Monsters in Lushan Mountain

The Heart of Lushan is giving birth to a world-destroying artifact, and the heart of the Eternal Silence Demonic Abyss is suppressed under the Donglin Temple. The world-destroying artifact has become a must-grab item for the big monsters. All monsters want to possess the Heart of the Demonic Abyss and rule the six realms. My name is Yun Yazi, a repairman of magical instruments in heaven. I was not reused in heaven and was demoted to the mortal world. Unexpectedly, anything on my body can have miraculous effects: my tears, blood, muscles, skin, and spiritual consciousness can refine high-level artifacts; one of my hairs, fine hairs, fingernails, saliva, sweat, eye mucus, nose mucus, and earwax can anoint Transform into a level 5 or above demon; my mouthwash, face wash, and foot wash are panaceas that can cure any injured demon; especially my pee and poop are a great tonic for cultivators, and are more effective than any fairy fruit elixir. As long as you practice double cultivation with me, you can directly upgrade without going through a catastrophe. All the female monsters want to have sex with me, and all the male monsters want to eat my piss and poop. Because I am a tinker, I inevitably hoard a lot of magic weapons that have been damaged by the gods. After I repaired them, I stored them in my Qiyun Temple. Unexpectedly, they caused an unknown sensation. Not only that, I am also the only person in the world who can create a world-destroying artifact and reshape the heart of the Demon Lord. Who am I? I feel that my background is very unusual, but my magic power is low and I am just a small earth fairy on the ground. Even the second level little demon can ignore me. Fortunately, I have many magic weapons, otherwise I would have been eaten by the group of little monsters I raised.