I Turned History into a Copy

Chu Guang traveled through time. Traveled to a world full of historical ruins. He found himself in charge of two gates. An echoing door: The adventurer of the Chuguang Contract condenses a special body and steps into the bygone years to gain knowledge and wealth. A door against the current: Follow the long river of time, go upstream, explore the truth concealed by time, save and build our homeland. For others, the past is just history that has happened and can never be changed. For Chu Guang, there is a world of treasures that has not been explored by anyone!