The Japan National Football Team won 4-0 against Tunisia in the FIFA World Cup 2026, advancing to the knockout stage. However, Korean media criticized the display of the Rising Sun flag. The Japanese team had previously drawn 2-2 with the Netherlands and this match was crucial for advancing to the next stage. The game was dominated by Japan from the start, with the team taking the lead in the first half and maintaining it throughout the second half, ultimately winning 4-0. The win gave Japan 4 points and a significant boost in advancing to the knockout stage. Korean media outlet 'Sports Chosun' pointed out the issue of Japanese fans displaying the Rising Sun flag, which is seen as a symbol of Japan's past imperialism and militarism, and is perceived as a reminder of the invasion war in Asian countries, including Korea. The media reported that some Japanese fans have repeatedly caused controversy by displaying the flag at international competitions. In the 2022 Qatar World Cup, Japanese fans also displayed the Rising Sun flag, which was stopped by FIFA security personnel. Additionally, after the match against the Netherlands, the Rising Sun flag was seen in street celebrations in Japan, and it was criticized that it was brought into the stadium again during the match against Tunisia. The Japanese team's victory has advanced them to the knockout stage, but the issue of the Rising Sun flag is being criticized as a problem behavior by Japanese fans. The Japanese team will aim to accumulate points and advance to the knockout stage in their next match. The issue of the Rising Sun flag will continue to be a focus of attention as a problem behavior by Japanese fans.