I am the snake demon!

Bai Xuan, a snake demon who had cultivated for a hundred years but possessed a thousand years of cultivation, like his predecessors, aspired to transform into a dragon and become an immortal. To achieve immortality, Bai Xuan emulated his predecessor Bai Suzhen, descending the mountain to repay a debt of gratitude and settle karmic debts. Initially, he thought giving his benefactor wealth would sever these karmic ties, but little did he know that his benefactor had been reincarnated as Xu Yuhua, the eldest daughter of the Prince of Zhenbei, who demanded he impersonate the Prince's heir, inherit the title, and command a hundred thousand troops in the Northwest. Determined to become an immortal, Bai Xuan didn't hesitate, decisively beginning his life of impersonation, plunging headlong into the mortal world. Years later, the Taoists revered him as an immortal, and the Buddhists regarded him as a Buddha. A monk secretly reported to him that there was demonic energy in the royal palace, and Xu Yuhua was suspected to be the White Snake. Bai Xuan fell into deep thought: Could it be that he himself was the demon?