First Appearance Edit
She was as lithe and graceful as a fairy and her entire body was enshrouded in cloud and mist making it impossible to make out her features clearly, and one could only vaguely see a pair of eyes that were as tranquil as an ancient spring. 
Kind hearted; detests killing. As seen when she recovered she didn't kill the people who destroyed the Eternal Night Royal Family, and Frozen Cloud Asgard, which was built for ill-fated girls who had nowhere else to go.
She is a very calm and smart woman, author described her as "Spotlessly ice-cold hearted."
Her elder sister Mu Xuanyin mistakenly hurt the son of Huo Rulie, causing his anger, but he couldn't do anything to her because she was stronger, so he decided to place his revenge on Mu Bingyun, poisoning her which caused the losing of her memories and profound strength, falling to the lower realms.
After regaining her memories and strength she created Frozen Cloud Asgard, for women who had no where else to go and eventually left Frozen End Divine Arts, a supreme profound art from the Realm of Gods, but as it was impossible for normal people to cultivate, thus she created Frozen Cloud Arts within seven days, before eventually leaving.