MAMAMOO's Moon Byul has dropped a new concept film for her solo comeback.

Just like the previous concept photo, Moon Byul is a high school student alone in a mysterious school cafeteria. In this ominous video, she finds a golden cheese in the locker.

As announced, her 2nd single album is titled 'C.I.T.T,' an acronym for "Cheese in the Trap." Stay tuned for more teasers to come until the album release on April 28 KST.