Sunmi is ready for the summer and is seen cooling off the heat in the second set of concept photos.

On June 22 at midnight KST, the artist unveiled the second set of concept photos for her single album with the comeback title track "Heart Burn." In these latest photos. Sunmi continues to enjoy the summer and takes a swim in the pool. 

Sunmi will be ready for the summer heat on June 29 at 6 PM KST. So check out the teasers below until the release of more!