Lu Chuan is trapped in a dark space for one hundred thousand years, forced to practice swordsmanship by the useless donkey system, A Fu. When he finally emerges, he looks old and weathered. Though he possesses unparalleled swordsmanship, his body has aged so much that he often throws out his back before he can even strike. As he ventures through the cultivation world, he becomes embroiled in bloody battles over secret realms, crushes a million-strong army from the Demon Domain, and enters the Bronze Divine Hall to uncover the secrets of the Great Emperor. Once the calamity has passed, he quietly bids farewell to Mingyue Pavilion and travels far away. Yet countless crises threatening the Tianhuang Continent are already waiting for him.