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The girl group got fans' hopes up with their first teaser image for 'Act. 4 - Cait Sith', their 2nd single album and the fourth installment of Gugudan's famous folk/fairy tale inspired music series. It looks like Gugudan's comeback title track will be "The Boots". All nine members will be back for this comeback.

Stay tuned for more, leading up to the group's full comeback on January 31 at 6PM KST.