In 'Battle Through the Heavens' the titles that were higher than a Dou Di were 'Heaven Dou Emperor' and 'Dou Di'. However, Xiao Yan's highest level was not limited to a Dou Di. The 'Heaven Dou Emperor' was the title that Xiao Yan had obtained after becoming a Dou Di. It represented that he had already become the highest ruler of the Heaven Dou continent. "Dou Di" was an undeserved title that only those with great strength could be bestowed with. This was because it represented the highest authority and strength a person possessed on this continent. Xiao Yan had once reached the peak of the Dou Di class after becoming a Dou Di. He possessed an incomparable strength that allowed him to easily control all the strength on the Heaven Dou continent. Hence, he was not limited to being a Dou Di. He possessed a higher level of strength and could be called a "Dou Di" or "Heaven Dou Emperor".