On May 17, Jellyfish Entertainment revealed, "Hyeyeon is not attending anything in her schedule excluding school due to health issues. In order for her to recover her health, we've decided she needs to focus on taking a break and treatment. We plan to do our best, so Hyeyeon will recover her health, and we ask for fans to understand the sudden news."
Hopefully, Hyeyeon will recover soon. Stay tuned for updates on Hyeyeon's health.