This time, Ahyoung turned into a sexy scientist, gazing deeply into the beaker in a sleek suit. Based on the teaser images revealed so far, it seems like Dal Shabet are taking on a "Work hard, Play hard" theme, transforming from career women into party gals. 

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We'll have to wait and see the full details of Dal Shabet's 10th mini album 'Fri. Sat. Sun.' on September 29!