The snack bar opened by engineering student Lin Tiankai has a secret that makes him travel back to ancient times every night. He brought modern prepared dishes, snacks, etc. To the ancients. From ordinary aunts to wealthy daughters, generals and soldiers, they were all conquered by these novel delicacies. He used this to earn cash from ancient coins, solve his livelihood problems, and the snack bar became famous. He was also accidentally involved in various interesting things, and started a wonderful journey of earning money and adventure between the two worlds.