Ghost9 will be making their long-awaited comeback for the first time in approximately a year and 6 months, with the release of their 7th mini album, 'Arcade : O'. 

In the first MV teaser for their title track "Ruckus", the members of Ghost9 charmed fans with a stunning visual transformation, all seven members sporting base shades of silver in their hair. 

Meanwhile, the group's upcoming mini album contains a total of 6 tracks, including "Let's Get Lost", "Ruckus", "B.O.M.C (Bang On My Chest)", "Rolling Stones", "Love Parachute", and "Bookmark". 

Ghost9's full group comeback is slated for October 25 at 6 PM KST.