What Good Things Have Happened to Me in History?

Lin Long, an ordinary college student, got a mysterious "Historical Records" in an accident. When the page of the book is turned, he is randomly thrown into the real history and becomes a slave, a soldier, a businessman, and even an enemy. He cannot choose his identity, nor reveal his future to the ancients. The only task is to bring history that has deviated back to its original track. From Qin Feizi being granted the title of Qin, to Qin Xianggong escorting King Zhou Ping; from Baili Xi entering Qin, to Shang Yang's reform, to Qin Shihuang sweeping the six kingdoms. Lin Long kept meeting and getting separated from his teammates who were randomly selected by the history books, and protected in the dark those who were supposed to change the era. What hardships and adventures will he experience?