Modern office worker Lin Yuan crosses over to troubled Qingzhou during the Chengping era of Dayong, almost starving to death upon waking up. He awakens the Pinhaofan system with a daily limit of 19.8 yuan, allowing him to order one takeout meal every day. Amidst the desperate situation where refugees are everywhere and people resort to cannibalism, he relies on takeout food to survive, acting with extreme caution at every step. He uses sugar water and spicy hot pot soup base to improve coarse grain gruel in exchange for copper coins, uses a plastic takeout box to disguise as a Western crystal box to trade for free citizen household registration and a mansion, and takes in the literate refugee Chen Erlang. When his business is exploited by minor officials, he resolves the crisis by pretending to be ghosts and gods.