Lin Yucai time-travels back to 2018 and becomes the principal of the worst high school in the city. With college admission rates at the bottom and enrollment rates at the bottom, the education bureau issues an ultimatum: if they cannot recruit more students, the school will be shut down immediately. At the moment of despair, Lin Yucai activates the God-Level Advice-Listening System. As long as he takes students' suggestions and completes them, he can obtain treasure chest rewards. To save his iron rice bowl, Lin Yucai sets up a principal's mailbox on the playground, and the school's style completely twists from then on. A delinquent student pranks, "Principal, the cafeteria pig wash isn't even fit for dogs. If you have the guts, invite a five-star chef." Lin Yucai arranges it: ding! Rewards God-Level Culinary Aura and a Million-Catering Fund.