Her appearances was peerlessly beautiful as if she was a goddess that descended to the mortal world.
While the other Seven Fairies were cold and proud, Feng Hanyue and her sister were the opposite. They had sweet and cute personalities and were very friendly yet naive. The Asgard Mistress never allowed the twins to leave Frozen Cloud Asgard because their childish nature was completely different from the Frozen Cloud Asgard's reputation of "icy proudness".
She came out with the rest of the Seven Fairies to fight Yun Che when he came to Frozen Cloud Asgard to look for Chu Yuechan but were defeated. When Yun Che joined as a disciple, he accidentally ran into the Seven Fairies when they were naked in the bath. Yun Che opened all of her profound entrances as repayment. Because Yun Che found her easy to tease, he lied to her about her last profound entrance being in the front to take advantage to grope her breasts.
After Yun Che returned from the Illusory Demon Realm with the Overlord Pellet, he helped all disciples assimilate the pellet, including Feng Hanyue. Her Profound Strength rose to the Tyrant Profound Realm.
Mu Bingyun bestowed the 6 remaining Fairies each a drop of blood essence so they could cultivate the Frozen End Divine Arts, thus giving Feng Hanyue a very thin Ice Phoenix bloodline.