What to Hit: Boxing Gym in a Mixed-Use Building

In front of JR Gotanda Station, where offices and bars line the streets. From a room in a small building, you can hear the sound of a boxer hitting a sandbag. It is a long-established boxing gym, open from 6:30 a.m. to midnight. The gym is famous for having produced a number of world champions, but people come to the gym for a variety of reasons. Some are company employees who come to relieve stress from work. A junior high school student who comes to the gym because he admires his father, a former professional boxer. A former delinquent boy who is determined to make a fortune.... What are these people fighting against in this corner of the city?