Don't Be Afraid, Immortal, I'm Here to Collect the Rags.

Traveling through the world of cultivating immortals, while others were busy asking for immortality, Zhang Youcai picked up his old profession - collecting rags! What others see as rubbish can be turned into treasure by him! He can always get the treasures that others cherish at the lowest price! Build public toilets and ferment farmyard manure in batches. They collect money to dispose of poisonous drug residues, but after purification, they are made into medicinal cakes and sold. Discovering a group of dragons in the deep sea, Zhang Youcai was able to purchase the Dragon Palace at a low price, and then tricked all the dragons into working as coolies on the ground! In a world where the strong eat the weak, he works hard to protect the environment, leading millions of adults and aunts to be at the forefront of the era of "waste recycling"!