On June 30, NiziU announced on that member RIO will not participate in the group's scheduled activities this week due to health concerns. 

According to the group's official website, the decision was made out of consideration for RIO's health. NiziU apologized for the short notice and asked fans for their understanding.

The group is scheduled to appear on '2026 FNS Music Festival Summer' on July 1 and 'THE MUSIC DAY 2026' on July 4. The remaining eight members will participate in all appearances as scheduled.