As soon as Hong Mengni explained, ye Kong knew. It turns out that the Miaoyin beast has something to do with Kui Niu.

it is said that in the most remote ancient times, immortals did not appear at that time, and the basic wandering in the fairyland were the old gods who were full of food and had nothing to do, and the small, timid and enterprising ones. Of course, at the same time, there are a large number of ancient creatures in the fairyland, including Kui Niu and Miaoyin bird, which are two of them.

it's said that Kui Niu's belly will make a drum sound like playing a...