MAMAMOO dropped an individual teaser image for Moon Byul.SEE ALSO: MAMAMOO rise above in mobile game ‘Icarus M’ MV teaser As reported previously, MAMAMOO have announced a new comeback for July Followed by their successful “Starry Night” activities, the girls are now gearing towards a dramatic concept with “Rainy Season” In the black-and-white teaser image, Moon Byul sheds a tear behind what appears to be a glass wall with raindrops on top Describing a summer filled with rain, this new song might signal a rather mellow aura of the season  Although the full release of their 4th mini-album is set for July 16, the new teaser image hints that a pre-release song may be unveiled on July 1 at 6 PM KST Stay tuned for more updates!   MAMAMOOMoon Byul