Girls, Mothers, Stolen Binders: The Violent New Craze Sweeping Japan

A children's sticker collection hobby in Japan has escalated into a serious social phenomenon marked by theft, harassment, and a "fierce scramble" among participants—primarily elementary school girls and their mothers. The trend centers on "Rurubu" stickers, collectible seals found in travel guidebooks of the same name. The goal is to collect stickers from all 47 of Japan's prefectures. However, scarcity drives the craze. Special stickers are only available in specific regions, forcing collectors to travel or trade. This has spawned intense online trading communities. Participants, often mothers acting on behalf of their daughters, arrange in-person swaps. Meetings have turned aggressive, with reports of stickers being snatched and binders stolen. Some collectors resort to buying multiple guidebooks or traveling long distances, turning a simple hobby into an expensive and stressful pursuit. Sociologists note the trend reflects broader social pressures. For children, it is about social belonging and achievement. For mothers, participation becomes a measure of parental dedication, creating a cycle of competition that fuels the extreme behavior. Local police have begun issuing warnings about the trading meetings, urging participants to exercise caution. The guidebook publisher has also appealed for calm, reminding collectors that the activity is meant to be enjoyable.