In 202X, the world where the penetration rate of smartphones has expanded further than it is now. The act of operating a smartphone while walking, the so-called walking smartphone, has become a social problem due to the large number of accidents. The Walking Smartphone Ordinance that regulates this has been introduced. A well-behaved citizen selected from the country becomes a private watchman, and for people who are walking smartphones It is possible to give caution and punishment on the spot. One day, due to some mistake, a sealed letter arrives at me, who is half-withdrawn. Inside was a pass card and a sentence. Walking smartphone ordinance, appointing a guard-