Man Is in the Last Days and Has Just Returned from Ancient Times

When the end came, Ji Jin was working on his thesis. When she woke up, she was on the grass in the col, with an abandoned guest house behind her. There is an extra system in my mind: [You are the only designated contractor of this system. Please complete historical tasks and upgrade the shelter. The kitchen, infirmary, library, training room... Are all locked, and she has to run a mission in ancient times to get them back. She is studying for a PhD in history and has been studying Sima Qian for three years. I never thought that this resume would one day become a job qualification. Task 1: Bianjing in the Northern Song Dynasty, heavy snowfall, looking for the separated old people and children. Came back and changed the kitchen. Mission 2: Western Han Dynasty, Sima Qian was imprisoned. She had read every word he wrote. Standing in front of the author for the first time, she could not say anything she had prepared. Later, in Handan during the Warring States Period, the boy who stayed with her for three days before turning around to thank her was named Zhao Zheng. At Xiang Yu's camp, the woman she was helping was Lu Pheasant... The end is outside, history is in front, and Ji Jin is running in the middle. ~Her name is Ji Jin. Ji, the Ji that records history. Today, living in the present--but the end has come, and she has to travel back to ancient times to complete a mission. Her instructor said this is called "applying what you learn." She felt this was a "misfortune from heaven." ~Ji Jin said to Sima Qian: "I came here two thousand years ago. You will write a history book that will last forever, and future generations will respect you as the 'Historical Saint'." Sima Qian was silent for a moment. "Then will I die?" "No... But I will be tortured..." "... Castration?" "…Yes." "..." "But it's really great, I swear." Purpose: What truly supports people's survival in the apocalypse is not just food and safety, but also history, civilization, and connections between people.