On April 28, MAMAMOO member Moon Byul returned with her new single album 'C.I.T.T (Cheese In The Trap)', along with the release of its music video. As previously reported, the album made an impressive feat as it recorded over 70,000 pre-order copies, setting a new personal-best for Moon Byul.

According to the data released by the Hanteo chart, the album ranked first on the 'Daily Physical Album' ranking of April 27 for selling 68,138 copies on its first day.

With this, 'C.I.T.T (Cheese In The Trap)' has become Moon Byul's highest-selling album in first-day sales, breaking her personal record previous held by her first mini-album 'Dark Side of the Moon', which had achieved around 59,000 copies on the first day of release.