"It is said to be from a great beast called as the Unyielding Obsidian Weasel." Daoist Chu stated. "It was a beast that lived a long time ago and was very powerful. It was impervious to most skills and its defenses were even said to be greater than that of the Black Tortoise." He explained.
when I first started reading it I had my doubts about how this is gonna be just another weak to strong harem type story, but there is so much more to this then that and I would definitely recommend you read this as soon as possible.