Reborn as the Immortal Emperor's Discarded Son-in-Law

The supreme Immortal Emperor falls in battle, only to awaken as a scorned son-in-law in a mortal family—powerless, humiliated, mocked. But behind his meek facade lies a heaven-defying system and millennia of divine cultivation knowledge. His beloved wife? Possessed by his corrupted Dao Companion, her soul twisted to drain his power and unleash city-destroying beasts. His ancient enemies? Conspiring with dark alchemists to sacrifice billions and forge a god-slaying pill. When the mask finally shatters and his true power erupts, he'll reclaim everything—purifying his wife's tainted soul, crushin…