Demon-Suppressing Heavenly Emperor

An orthodox cultivation genius falls into a zombie demon realm. Lu Chen, a reclusive disciple of Qingxuan Immortal Sect unseen for a millennium, possesses a pure Dao heart and perfect foundation. Ordered by his master to descend the mountain for worldly experience, he accidentally falls into a rift between realms and plunges into the forbidden Corpse Abyss Demon Realm—a place devoid of spiritual energy and heavenly Dao, overrun with zombies and demonic creatures, where all life follows the law of devouring and evolution. His immortal power drains continuously, his soul is tainted by death qi, and his protective jade pendant dims inch by inch. In desperation, the young immortal, whose hands have never taken a life, is forced to draw his sword for the first time. Orthodox浩然 techniques prove effective against the demons, but they also make him a target for the hordes. With no retreat, he must fight; unable to assimilate, he must forge his own path. As immortal arts clash with the zombie tide and the Dao heart confronts decay, watch the pure white youth refine his desperate situation, bury ten thousand demons with righteousness, and suppress the Corpse Abyss with mystic dust. This is his journey from a blank slate of immortality to the Demon-Suppressing Heavenly Emperor. — Description from novelcodex.org