Jiajia, who was born on the ninth day of the ninth lunar month, is thirty-three this year. She was an ordinary mother who just wanted to live a stable life with her youngest son Honghong, but her life was completely changed by a sudden "double destiny". Her birthday coincided with the time when the Immortal Family climbed high to achieve auspiciousness, and her son Honghong was born on the third day of the third lunar month when the Immortal Gate was established. This rare fate made the dormant black old python Immortal choose her to become the "Earth Horse".
At first, it was a low-grade fever with no known cause, lingering coldness on the back, and nightmares of pythons that haunted him every night; then, disasters struck the well-behaved Honghong one after another - spilling boiling water, falling down the stairs, and falling from the slide, all of which were weird. Jiajia, who did not believe in evil, found the knowledgeable Aunt Chen when she was desperate. Only then did she realize that this was an old immortal's "grinding three passes" to tap acupuncture points. Because she had not accepted the immortal fate for a long time, she could only ask her relatives to remind her.
On one side was her son's safety, and on the other was the inevitable fate of immortality. In the midst of collapse and struggle, Jiajia finally faced the giant python carrying heavy cornus leaves in her dream. When she pressed Aunt Chen's call button, she was destined to step down from her role as an ordinary mother and take on the responsibility of being a disciple. From then on, she used the Black Iron Token as a basis to awaken the power of the fox, yellow, and python in her body, and stepped into the fog of urban Yin evil spirits. The Yin Sha cult used technology to graft evil magic, turning living people into "biological computing power nodes", and laid out digital blood arrays in an attempt to open the Yin Gate. Jiajia not only wants to protect her son, but also controls the power of the immortal family as a mortal. In the gap between digital and reality in the neon city, she fights against the evil evil wrapped in technology, earns a path of salvation for the innocent, and also finds an answer to "debt and blessing" for herself and this belated fairy fate.
