The owner of an ordinary coffee shop returned to his residence on the second floor after closing. While relaxing, he was suddenly stopped by himself on the computer screen, claiming to be himself two minutes later. It turned out that there was a two-minute "time difference" between his coffee shop and his residence. As shop assistants and regular customers joined in the verification, they were not only curious about their future selves, but also tried to extend the two-minute time difference so that they would have more time to foresee trends and become successful. However, they never expected that the unbearable reversal of reality would point to an unexpected disaster.