It was difficult to determine the exact number of novels that had this pet, the Evil Eye Tyrant, appear in because many novels might have this pet. However, the Evil Eye Tyrant was one of the more important characters in Battle Through the Heavens. The Evil Eye Tyrant was the eldest son of the Nine Nether Demon Emperor and the Nine Nether Heavenly Demon Emperor. It was born with a strange ability that could release terrifying power. In the novel, the intense battle between the Evil Eye Tyrant and the other characters added quite a bit of excitement to the growth of the protagonist, Xiao Yan.