Syachihoko members were waylaid by fans. https://team-syachihoko.jp/schedule/#news11273 http://www.oricon.co.jp/news/2040729/full/ Syachihoko is the youngest child among three sisters of Momoclo. They mentioned about malicious nuisance on official site on August 7. The fans waylaid them outside their house, nearest station and school. The members and their family are feeling uneasy. Stardust called attention to the problem.
That's scary. I remember reading about the Aarin and Shiorin incident but since it was an isolated event and it's Momoclo (much larger fanbase) I thought it was the kind of thing that happens to famous people once or twice but nothing more.
The fact that it happened to Syachi is creepier, maybe it has something to do with more people knowing where they live.