Shot at Nakano station in Nakano, Tokyo. This station is a terminal station for Tozai Line. The train which I got on has arrived at this station and every passenger dropped off from the train. The platform was flanked by the trains. One was just arrived and the other was waiting for the departure.
The passengers were walking to the exit altogether. Because everyone headed for the same direction, I felt as if they were water swallowed into a drainage port.