Speaking of Xuanwu, one has to trace back to the ancient times.
In that era, there were no such distinctions as furry, scaly, horned, or feathered races among the Demon Race. Many demons gathered together not because of blood ties but for better survival.
The Jiaolong was adept at attack, while Xuan Gui excelled in defense; thus, the two species grew close and even lived together, forming the same clan and taking the name "Xuanwu".
As for when the Xuanwu disintegrated, that's another story altogether.
"Xuanwu Temple?" Among the Shushan elders, there were several who were well-versed in the history of the Demon Race, and couldn't help being astonished.
"What's the story behind this Xuanwu Temple?" Su Jian immediately asked.
"Xuanwu was once one of the four strongest clans of the ancient Demon Race," replied an elder from Shushan, "Though referred to as one clan, it actually consisted of the Jiaolong and Xuan Gui."