Eigong

Eigong is an elder woman with light grey fur, wearing a teal coat decorated with gold over her lab suits. She is wearing an iron jewelry with crimson beads on her forehead, and the Fusang Tree's primitive roots, which she revealed, are replacing her hair. The wig is well-organized and decorated with beacons, which she can transform into combat lightsabers

Eigong is a genius scientist who strives to benefit the public, but deep down is obsessive with her goal of achieving immortality. Despite her vast knowledge, she is incredibly deceptive and selfish, deceiving Yi during his time as her pupil, and also ensuring Nuwa's loyalty for the council under the pretense of giving Fuxi a cure. Her arrogant selfishness is also the catalyst of driving her species to extinction. Ruthless and remorseless, Eigong firmly believes that one must forsake others - such as Humans - to accomplish their objectives even in her dying breath, refusing to acknowledge any of her faults of befalling everyone within her kin

500 years ago, Eigong was originally a futurist scientist from the Tiandao Secret Research Center. At the end of the Origin Era, she conducted her long-cherished experiments on the immortality and eternal life of the Solarians, by using the commission of the Feng Clan as her main endorsement. But when she conducted experiments to combine the regenerative gene of the Fusang Tree's Primordial Roots with the experimented Solarians' cells, it resulted in the spread of the Tianhuo virus.

As a result, she revealed the Tianhdao Research Center to treat the Tianhuo Virus externally, and she traveled around Penglai's 9 Kingdom to find nine outstanding technicians, a process that was the beginning of the establishment of the Tiandao Council. However, her mind remained obsessed with finding a source for the Solarians to achieve immortality. When she heard from the Xia Kingdom about Yi's revival under the influence of the Fusang Tree, she treated him and took him as his pupil, hoping that she could use him to complete her theory.

During her search for a cure, however, Eigong realized that there was actually no cure, as the virus was a genetic factor that bestowed Solarians their intelligence. She then decided to put forth Yi's Eternal Cauldron Project and also Lady Ethereal's Soulscape System. But before New Kunlun's departure from Penglai, Ji revealed his uniquely secret constitution of why he had been eternally living without aging and having immunity to all diseases to Eigong. To Eigong, who failed to reproduce Yi's case to which her theory was perfectly applied, Ji's presence was like a godly, heavenly opportunity, and a worthy key to breaking the difficulties. So during the midst of the Eternal Cauldron Project, Eigong developed a serum for curing Tianhuo from Ji's genetic material. All of these experiments were done without Yi's knowledge. She also promised Nuwa to give the latter a cure as well by reanimating Fuxi for the devastated Nuwa.