Spiritual energy flows through three realms, and those of mixed blood are deemed heretics. Overnight, the divine runes in Returning Heart Valley mutate, and spiritual energy across the three realms runs wild. The Immortal Palace’s demon-hunting decree targets the son of the fox demon Hong Li: the strange little boy A Wu, who loves using the divine rune stele as a teething stone.
Yi Chen, a cultivator from the Yunlai Sect, finds a damaged chart in a ruin in the far north. Before he can finish reading the words “light-dark resonance,” demonic cultivators ambush him. Strangely, the fragments they use to channel demonic energy bear patterns exactly like those on the broken stele A Wu chewed on.
When A Wu’s fingertips accidentally touch Yi Chen’s sword, ancient secret inscriptions suddenly appear on its blade. Meanwhile, deep in the Dark Abyss, a lord who has slept for a thousand years suddenly opens his eyes. With the Immortal Palace’s attack imminent and demonic cultivators lurking, what secret does this child, called a “rules virus,” conceal that could overturn the Heavenly Dao?
