Shibuya in Tokyo is one of the most popular towns for young people. Thousands of them come to Shibuya after the Japanese national soccer team wins a match in the World Cup.
They wave a Japanese flag, hit a drum, sing a soccer chant, walk on a pedestrian crossing to give high fives to people crossing from the other side, etc.
This has been seen for a while since Blue Samurai won a match in the 2010 world cup in South Africa.
Hundreds of police officers have to come out to control the crowd using a PA system to tell them to behave and guiding them to cross a road with a pedestrian crossing.
The video below shows how Shibuya was after 11pm on June 19 when Japan beat Colombia in a group stage.