The ox clan was not good at technical stuff. This was the consensus of all the demon clans. It was also because of this that although the ox clan produced a lot of food and other things every year, their life was not very good. Fortunately, they were the demon clan. When they cultivated, they needed less materials than the human clan. Otherwise, their days would be even more difficult.
A large portion of the cattle clan's annual grain harvest had to be handed over to Yi sect. Although the rest could be freely allocated, they couldn't just eat grain every day and not use anything else. However, they could only use grain to exchange for other things. This way, others would raise the price or suppress the price of their grain. After all this, they could only exchange food for very few things and their own lives were also very tight.
