After Awakening to Level F, I Became the Only Immortal Cultivator in the World

[Decisive to kill] [Comfortable and intensive] [Super funny] When Nie Yu woke up, he found that he was back in high school, but he soon discovered that it was not the high school in his memory, but a world where spiritual energy was revived and martial arts was the mainstay. The system has arrived, and he is about to reach the pinnacle of his life, but he did not expect that a demonic cultivator from the Mahayana stage descends from the sky, seeking to seize his body and be reborn! The system was the protector, but he died together with the Demon Lord! At the awakening conference, Nie Yu awakened the most rubbish F-level power and became a laughing stock. However, no one knows that there is a piece of "Demon Lord's legacy" in his mind that has been carefully organized by the system - the lifelong memory of Demon Lord Tongtian! [Relying on the memory of the Demon Lord, he reversed F-level abilities as a mortal and embarked on a path of cultivation that Blue Star had never experienced before! [He is proficient in countless techniques and secrets. With a snap of his fingers, forbidden techniques appear in the world and all things are destroyed! [He has mastered the art of alchemy and weapon refining, and can easily refine elixirs and magic weapons, which has attracted crazy competition from all parties! The carefully refined Ten Thousand Souls Banner defeated the aliens on the battlefield and was defeated] [He gained a glimpse of countless secrets of the Mahayana period from the Demon Lord's memory, and the future path is under his control! Alien leader: "That human devil, he is more terrifying than our devil!" Monster King: "I would rather die at the hands of a martial arts master than be caught in his eye!" 749 Senior executive: "His single strength can equal an army of millions. He is Blue Star's biggest variable!" Blue Star Prodigy: "We, the Prodigy, are just frogs in the well in front of him!" While Blue Star's martial arts was still involved, Nie Yu had already relied on the Demon Lord's memory to achieve supreme demonic power, and became a peerless great devil that terrified foreign races and monsters and made Blue Star tremble!