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[Travel infrastructure][Two male protagonists][Tent leads to modern times][Ancient military camp][No CP][Easy and hilarious][Space] Time travel into an ancient military camp? Lin Yan relied on a tent connected to modern times to survive the winter of an army of 100,000 people! Repair tents, provide heating, food and inventions, and have a handsome general as a backer. See how modern outdoor experts lead ancient armies? Chu Zhao: "Move next door to me and give you a status." Lin Yan: "Have I been promoted?" Infrastructure is booming, power struggles are taking over, and cold-faced generals are turning into clingy men. "General, is he a demon?" "General, is he an immortal?"