The former Sun God, who had since fallen, had an extremely unique technique that was exclusive to him. He could create angels.
He could make use of all kinds of things to create angels of all sizes, from angels as big as gods, to angels as small as birds and beasts. So long as he was willing to, it was possible to attach a pair of wings on everything in order to obtain a template of a legendary creature.
This was probably like some of the illustrators that Sui Xiong had done before he traversed worlds. No matter how beautiful the female characters were, these illustrators liked to add a special, mysterious organ to the hips; thus the famous "Ah Lucifer, please take my soul" faction came into existence. And a faction that was diametrically opposed to it, the "help him out" faction, was also inaugurated.