This month's girl Chew gave Sunmi and Chemie.
On the 3rd, Chu posted a picture with the article "Genie is sick because of her sister's fever" through the official Instagram of the girl of the month.
In the open photo, Chu and Sunmi are taking pictures with their lips outstretched.
Meanwhile, Girl of the Month and Sunmi recently made a comeback.
About Sunmi
Lee Sun-mi, known mononymously as Sunmi, is a South Korean singer, dancer, songwriter and record producer. She debuted in 2007 as a member of South Korean girl group Wonder Girls and left the group in 2010 to pursue her studies.
 Wikipedia