The origin of Tai Sui's Brain is unknown; born from the eerie phenomenon following the advent of the Blood Moon, it accidentally fused with a human brain, transforming into a new species with inherently evil instincts.
It was this entity that influenced the founder of the Black God Group, Claude, driving him to incessantly capture humans, consume their brains and souls, to enhance his capabilities under the illusion that he could eventually complete his immortality plan through this.
In reality, Claude had long become a mere extension affected by Tai Sui's Brain, and most of his actions were decisions influenced by Tai Sui's Brain, not his genuine will.
Despite its inherently evil nature, Zheng Yi never intended to destroy it outright because such a rarity, even in Great Yi City Immortal Realm, is unprecedented, potentially unique in the world, and eradicating it could be seen as wasteful.
