Late Ming Dynasty: 70 Kwh

The red land is thousands of miles away, and people die of hunger everywhere. When he broke into this hell alone with a smartphone with only 70% battery left, survival became the only proposition. From using offline maps to forage in the wilderness, to using minimal modern knowledge to gain a foothold among the refugees; from struggling to survive at the bottom of the rebel army, he carefully burned the precious power, and every time he turned on the screen, he was racing against time. What he has to face is not only hunger, cold, and military fronts, but also the heavy inertia of the entire era. When names such as Li Zicheng, Zhang Xianzhong, and Dorgon are no longer symbols in history books, but live opponents or allies in front of him, can he use this limited "secret" to carve a way out for himself and his followers in the cracks of history? Every time the battery drops by one bar, his connection with the past is lost. When the screen finally dims completely, has he completely become a part of this cruel era? This is the story of a man who used the last spark from the future to fight against the torrent of the entire era.