The white snake spirit Yin Dai, who has been practicing for many years, was rescued by Lu Dong Bin in the process of avoiding the catastrophe. The original kindness gradually evolved into love in Yin Dai's heart, but she was troubled as a demon. Whether you want to confess your identity to your loved one. At the same time, the snake demon Cui Ming and the butterfly demon Pian Pian were in trouble, making Yin Dai into crisis again and again, even though her sister, Tsing Yi, wanted to protect her sister. But in the end, he could not escape the doomed catastrophe.