The Bull Demon King has a very profound background in Journey to the West, and his backer is the most important figure in the entire Journey to the West - Taishang Laojun. His true identity is Laojun's mount (driver), so many immortals will naturally try their best to make friends with the Bull Demon King in order to support Laojun's mountains.
The Bull Demon King is very powerful. Among the demons in Journey to the West, the Bull Demon King is one of the few characters who can defeat Sun Wukong with his own strength rather than magic weapons. Flame Mountain, who knew the abilities of the Bull Demon King and Sun Wukong, once said: "The Bull Demon King has vast supernatural powers and boundless power, and is Sun Dasheng's opponent!" He is the boss and claims to be the Great Sage Pingtian. The Monkey King and other seven demon kings are not good, at least they are heroes who dominate one side. Like monkeys, they are particularly arrogant and don't look down on people very much. The six demon kings all regard the Bull Demon King as their elder brother. It can be seen that the strength of the Bull Demon King has an advantage among the seven, if not the first, at least the second. On the way to study the scriptures, the monkeys not only failed to take advantage of the Bull Demon King, but instead showed that they were weaker than the Bull Demon King.
If Sanxian directly said that the Bull Demon King’s backer was Taishang Laojun, no one would agree, but there is a lot of indirect evidence in the original work. The banana fan is the lunar essence leaf that grew from the back mountain of Kunlun during the time of chaos. It grows together with Laojun Taishang's purple gold gourd. When the world first opened, Princess Iron Fan could not exist, but Taishang Laojun plucked the purple gourd with his own hands. It's impossible not to notice "banana fans" while picking gourds, let alone grab them casually. The gourd leaves the leaves of Taiyi Essence, so Princess Tiefan’s banana fan is most likely given by Taishang Laojun. Red Boy's martial arts is very strong, and he is already quite powerful at defeating a monkey in a short time - that monster and Sun Dasheng have been fighting for 20 years without winning or losing. When Bajie joins the battle, Red Boy cannot defeat him, so he sets fire to Samadhi. Samadhi True Fire refers to: "The heart is the king's fire, also called the divine fire, named the upper eyebrow; the kidney is the minister's fire, also called the essence fire, named the middle eyebrow; the bladder, that is, the sea of ????qi below the navel, is the human fire, also called the lower eyebrow. Eyebrow." This samadhi true fire is much more powerful than ordinary fire, and it is used to defeat ordinary high-ranking people, as well as middle- and low-ranking immortals, gods, and demons. Looking around the whole Journey to the West, there are only two people who understand the true fire of Samadhi, one is Honghaier and the other is Taishang Laojun.
The Bull Demon King is also favored by Laojun, the gods in the sky, so he will be invited to any banquet.