The phrase "mei shizuku 何 した" translates to "What did Mei Shizuku do?" The context is about SHIZUKU (飯田栞月), a member of the 11-member girl group ME:I, who was announced to be taking a break from activities due to violating company rules. The agency LAPONE GIRLS stated that SHIZUKU was involved in a serious act that went against their regulations, which was considered against fans' expectations and required a period for reflection on her behavior. The specific details of the violation were not disclosed publicly, but it led to her activity suspension starting from October 15, 2025. This situation caused significant attention and some confusion among fans.

Additionally, it is reported that SHIZUKU and another entertainer from JO1, Ohira Shosei, simultaneously took breaks due to their own respective violations, intensifying the public and fan reactions.

So, "何した" (What did she do?) refers to SHIZUKU's violation of company rules, serious enough to cause her suspension from entertainment activities, but the specific action has not been publicly detailed.