I Am Reborn as the Master of the Demon Sect

Eight hundred years ago, Baili Sheng, the True Monarch of the Demon Sect's Xuyang Dao Lineage, cultivated into a Taoist body and proclaimed himself the Xuying Emperor. He wielded the Zhumeng Immortal Sword and conquered hundreds of immortal sects, becoming invincible in the world. However, on the bank of the East China Sea, he was killed by Huanyun Sword Ancestor and Xuanyang Taojun together, and he died with hatred. Eight hundred years have passed in a blink of an eye, and the remaining forces of the Demon Sect have painstakingly laid out their plans, found the destiny babies, carefully cultivated them, and set up a peerless sacrifice array, vowing to reincarnate the Void Nightmare into this world, crush the Immortal Sect, and take over the world. Unexpectedly, the formation went wild, the sacrifice was misplaced, and instead of waiting for the demon lord Baili Sheng to come, a modern young man was dragged into the world of cultivation! Having traveled through time, he becomes a container of destiny, carrying the original inheritance of the Demon Lord, bringing with him 800 years of inherent opportunities, and unexpectedly receiving the attention of the "Temple Book of the Holy Temple". The Immortal Sect regards him as a serious problem, and the Demonic Sect regards him as the reincarnated Taoist Master. Does your celestial sect follow rules and seniority? I am domineering based only on my strength. Your demon sect wants to control me and reincarnate me as a puppet? With a backhand, he took over the entire Demon Sect power. Starting as a mortal, awakening the supreme magic power, wielding the candlelight sword intention, trampling on the arrogant and geniuses, breaking the ancient grudges, and going against the heavenly ways of the immortal sect!