After Losing All My Cultivation, I Was Imprisoned by My Yandere Disciples

[Invincible background + multi-dimensional empress + master-disciple relationship + system + contrasting and satisfying story]Five hundred years ago, the God King Bai Yu, in order to protect his nine beautiful female disciples as they sought enlightenment, defied all ages, spilled his blood at the Heavenly Gate, and ultimately perished.Five hundred years later, Bai Yu is reborn, only to find that he has lost all his cultivation and has become a lowly medicine slave who is about to be sacrificed to the "bloodthirsty empress".In his despair, he looked up and saw that this ruthless female demon looked exactly like his little apprentice who loved to cry.Moreover, his former disciples have all become terrifying beings who awe the heavens—The eldest disciple takes charge of the Heavenly Court and vows to eliminate all unfaithful people in the world.The second disciple transformed into a ghost lord, intending to turn the Nine Netherworld into the human world;The youngest apprentice even became a mad empress, watering his cenotaph with the blood of living people day and night...Faced with the sharp blade pressed against his throat, Bai Yu could only grit his teeth and shout, "You wicked disciple, kneel down now!"[Ding! Detected host contact with the ninth disciple, activating the 'Grandmaster's Debt System', reward: God-level Physique - Ancient Sacred Body!]Seeing the traitors approaching with fanatical eyes and chains in hand, Bai Yu swallowed hard: "Wait, I taught you to cultivate immortality, not to imprison your master!"