Japanese football fans are globally renowned for their practice of cleaning up stadium venues after matches, earning widespread praise for their civic responsibility. This behavior has repeatedly garnered international attention, including during the ongoing 2026 FIFA World Cup qualifying matches. However, they are now facing significant criticism within Japan itself, sparked by discussions on the social media platform X. The nature of the criticism appears to stem from issues surrounding this cleanup practice within Japan, though details remain limited. This marks a shift from the positive international image they have cultivated. The situation highlights a discrepancy between external perception and internal scrutiny of their actions. Further details regarding the source of the domestic backlash are still emerging.