After Helping Qin Shihuang Unify, I Forgot About Myself

Traveling to the end of the Warring States Period, I was bound to the "Civilization Heritage System". Others rely on the system to show off when traveling through time, but I relied on the system to become an "infrastructure maniac" for Qin Shihuang: Repair the Zheng Guo Canal, carry out standardization, promote simplified Chinese characters, establish a medical officer system... The First Emperor regarded me as a genius sent from heaven, and he followed his advice. Until one day, I discovered that every piece of knowledge rewarded by the system was permanently deleting my memory. I forgot the physics formulas in the high school textbook, the core data in the paper, and even the top-secret tactics of the special forces. Fusu asked me: "Teacher, why do you always stay alone late at night?" Hu Hai asked me: "Teacher, why do you never leave the manuscript of what you taught me?" I don't know how to answer. Because I am also asking myself: If I forget everything eventually, is there any point in working hard at this moment? Until that day, the six kingdoms are over and the four seas are one. I fell in front of the First Emperor, looked at the civil and military officials of the entire dynasty, and said to my favorite disciple Fusu: "Your Highness... I don't remember why I have to teach you so much."