I'm the Fire Keeper

Others rely on the system to travel through time and space, but when I traveled through time, I had a civilization navigation system called the "River Map" in my mind. After returning, I looked at the imperial seal and the original copy of "Yongle Dadian" in my hand, and fell into deep thought. Then, I dialed a number anonymously: "Hello, I have a batch of national treasures here. Could you please... Come and pick them up?" From then on, my background became the whole country. While other time-travelers are fighting alone in history, I have taken the mission and drove the "official plug-in" to the next era. Ming Dynasty's "Tiangong Kaiwu", I will inherit it; During the prosperous Tang Dynasty, all the kingdoms came to court, and I came to witness it! Until I looked up from the ruins of Xia, Shang and Zhou Dynasties and saw the extraterrestrial demon... And behind me, the "Civilized Expeditionary Force" is ready to go.