Japanese soccer supporters stayed to collect rubbish and clean the stands at Monterrey stadium on Saturday, June 20 [1].

The act highlights a long-standing cultural commitment to civic duty and respect for host venues, drawing international attention during a high-profile sporting event.

Japan defeated Tunisia 4-0 [1] in the match, which marked the 1,000th World Cup match in history [1]. Following the final whistle, fans remained in the stands of the Monterrey, Mexico venue to gather discarded cups, and other debris [1], [2].

This behavior has become a recognized tradition among Japanese supporters at global tournaments. Fans worked together to ensure the aisles and seating areas were clear of litter before departing the stadium [2].

Ken Okawa, a 30-year-old Japanese fan, participated in the cleanup during his first World Cup experience. "I was happy to bring this tradition to my very first World Cup match as I stooped down to collect discarded cups and other garbage from the floor around my seat," Okawa said [2].

The effort occurred as the tournament continues across North America, with the Monterrey stadium serving as the site for this specific group-stage encounter [1]. The collective action by the supporters occurred independently of the stadium's official cleaning crews [2].

Japanese supporters stayed after Japan’s 4-0 victory over Tunisia to clean the stands.

The recurrence of this behavior by Japanese fans serves as a soft-power diplomatic tool, projecting a national image of discipline and respect. By cleaning the venue after a milestone 1,000th match, the supporters reinforce a cultural brand that contrasts with the rowdiness often associated with major international soccer tournaments.