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

In these images, Moon Byul puts on a preppy look in a high school setting. As announced, her 2nd single album is titled 'C.I.T.T', an acronym for "Cheese in the Trap." What do you think of this concept for Moon Byul?

Stay tuned for more teasers to come until the album release on April 28 KST.