There is a stone of incense in southern Fujian, all owned by Mazu, which the Jade Emperor couldn't stand. Meizhou Island is so rich that it cannot be monopolized by a female, so she intends to promote new gods and looks for partners among the local mortals with perfect merits.
After a few years, he was really asked to find someone. His surname was Wu Mingyue, and he was a doctor.
The Jade Emperor wanted to promote him and make him a god, so he gave him many hardships in front of him, hoping that he would die so that he could carry his soul to heaven.
Wu Kui went through many hardships in the world. He was supposed to die at the age of sixteen. Due to his tough nature, he gritted his teeth and lived to be over thirty. Finally, he could no longer bear it and jumped off a cliff to death.
*It's still a story about brothers falling in love and killing each other.
**The source of the title is a southern Fujian proverb: Crows in the world are as crow-like, and medicinal soups in the four realms are as bitter.
Intention: Junior brother, you are too pedantic, senior brother, you are too stubborn