Nine Nether Immortality Jue

In his previous life, Lin Mo was the Nine Nether Demon Lord who had dominated the Nine Heavens for three thousand years. He killed the Emperor of Heaven with his sword and died together. When he opened his eyes again, he became a mortal man lying on the dissecting table for testing drugs - his chest had been cut open, and the tip of the knife was touching his heart. Yaowang Valley, on the surface, makes elixirs and medicines, but in fact, it uses living people to conduct "physical modification" experiments. The owner of his body was the only surviving bloodline of the Lin family, a family that had been destroyed. He was sent here to die by his enemies. Seeing that the heart was about to be removed with the next blow, the Jiuyou brand on his chest that had been dormant for thousands of years suddenly became hot - the "Jiuyou Immortality Jue" carved by his own hands in his previous life woke up. The technique only has twelve words: live through death. The more miserable you die, the stronger you become. The first level of soul-eating is to swallow all soul-like attacks as one's own spiritual power. The moment the blade fell, a ray of gray spiritual energy condensed from his fingertips, and he pressed his backhand on the caster's Tianling Cap. After hearing the news, the owner of Yaowang Valley came and transferred him to the highest-standard "Tianzi Room No. 1". There is a crystal coffin in the room, and inside the coffin is sealed a sixteen-year-old girl named Murong Xue - there are nebulae in her eyes. She has not yet awakened, but she is already the most dangerous secret in the entire Beichen Continent. Lin Mo went from the anatomy table to Yaowang Valley, from the southern border to Zhongzhou, from a mortal to the Nine Netherworld. In this life, he will no longer be a pawn manipulated by heaven. He wants to use the "Nine Netherworld Immortality Jue" to swallow up all obstacles, climb to the top of the Nine Netherworld again, and ask the high heavenly law - do you still remember the pain of that sword three thousand years ago?