Billlie has adjusted their schedule as member Suhyeon experiences an undisclosed health issue.

On March 27 KST, Mystic Story released a public statement through Billlie's official fan cafe, writing, "We are informing you that member Suhyeon is unable to attend today's scheduled SBS 'Inkigayo' and offline/online fansign schedules due to a health-related reason. Billlie is not participating in SBS 'Inkigayo,' and Suhyeon will be absent from the 5:30 PM offline fansign and the 8 PM online fansign event."

The agency asked for fans' understanding, adding, "We will work hard in regard to Suhyeon's treatment and speedy recovery and continue to do our best for our artists' health and safety."