Simulation: Li Xiangyi, the World's Greatest!

He transmigrated into a terrifying high-martial world. He thought he would grow old and die in obscurity, just as he had in his previous life. Unexpectedly, the arrival of the Simulation System gave Li Muchen new hope. First life: Li Xiangyi, a young sword immortal, the best under heaven! If there is no justice in the world, I will cleave a path through it with my sword! The best under heaven? I was already that at seventeen! Second life: Shadow Assassin Qi! The strongest assassin in the organization, wielding the ever-changing Thousand Blades Demon Sword! The Thousand Blades Demon Sword attacks without defense, unmatched under heaven! Third life: The Immortal Lord of Myriad Methods! With absolute strength, he dominated the world and wiped out every demonic sect. A frail scholar? I am the greatest man of all time! One man subdued every hero under heaven. Who across all the ages could stand against him? Fourth life: The foremost of the Buddhist sect! Mighty Heavenly Dragon, World-Honored Ksitigarbha! He ascended to the supreme throne of the Buddha through the power of his Buddhist heart! Looking back, he realizes that every one of those invincible figures was him!