Hello. This is CTD E&M.
Loossemble member Hyeju will not be able to participate in official Loossemble activities for the time being due to her poor health condition.
This decision was made after careful discussion with Hyeju herself.
To the fans who have always sent their love to Loossemble and Hyeju, we sincerely apologize for the surprising and unfortunate news.
We ask fans for your understanding, and as we know that you are concerned, we will do our best for Hyeju’s health and recovery.
The official schedules for the other Loossemble members will proceed as planned.
Thank you.
(Source)