219 BC, Xianyang Palace. Lin Yuan stood three steps behind Qin Shihuang, wearing a black robe and mask, like a shadow. No one knew his name, only that the emperor called him "Qin Yuan". He looked at His Highness's kneeling ministers, but the roar of the high-speed train rang in his ears. That was his last scene before time travel - 2025, Beijing West Railway Station, he had just finished writing his doctoral thesis "World Line Deduction if the Qin Dynasty Had Not Destroyed". Then, there was a flash of white light, and he was standing here. And now, he will use 20 years to turn this world line into reality. Even if you destroy yourself.
