Humans are clever in tens of thousands of ways, Gu are the true refined essences of Heaven and Earth The Three Tehteous, the demon is reborn Former days are but an old dream, an identical na reborn A unique world that grows, cultivates, and uses Gu The Spring and Autu, All-Enco, Slender Black Hair Gu, Gu of Hope… And a great demon of the world that does exactly as his heart pleases! — Gu (蛊) referred to poison in various cultures in South China while in folklore Gu spirits could transfor/wiki/Gu_(poison)