Gu Yue Fairy Fortune Telling

What is the origin of Gu Yue immortal and the old man next to him in "Sky Mark"?

The protagonist of Xuanyuan Sword II is an old immortal who lives in seclusion in the fairy mountain in Legend of Xuanyuan Sword III. He Ran (Ran Weng) and Gu Yue Fairy appeared together to help Chen Jingchou and others tide over the difficulties and play a decisive role in the development of the plot.

My father, who led the anti-magic army in infancy, was defeated and killed in the decisive battle between man and fiend. As the only survivor of the whole family, he was rescued and raised by Master. 17 years later, after Master left a letter to tell He Ran about his own life experience, He Ran decided to find out the truth about the defection of the good god 17 years ago, take on the innate responsibility, create an ideal world where people and demons can coexist peacefully, and then embark on a journey. He learned about the Black Warrior Yang Kunshuo, rescued the mysterious girl Jiang Ruhong, and obtained the ancient artifact magic pot with the help of the Millennium White Fox sage Gu Yue. With everyone's help, it seems that they will wake up like a dream when they are almost finished: it turns out that they have been used by the fairy in the pot from beginning to end. At this critical juncture, He Ran and his party fought a decisive battle with Hu Zhongxian in Kunlun Wonderland, and finally sealed it with Xuanyuan Sword. Gu Yue, an immortal in Gu Yue, is the protagonist of Xuanyuanjian 2, a human figure transformed from a thousand-year-old white fox. He was raised by a fairy since childhood, so as a demon, he can understand human feelings better. He is also a famous doctor of medicine, with a gentle temperament. He likes Jiang Ruhong very much. Because I have been traveling in Cangjiang China for a long time, I am familiar with the geographical environment. His father, Jiang Changfeng, died to save Jiang Ruhong, and was resurrected after He Ran and his party found the Buddha House and melted the demon pot with the body of the sage of Gu Yue.