Hard rock and heavy metal J-pop band in which the members of the group are seen wearing maid outfits. They were originally signed to Gump Records, and later switched to major label Nippon Crown's sub-label Crown Stones in 2016. In 2019, they moved to new sub-label Revolver Records.
The group is also known as Band-Maiko. In 2016, they won the Japan Next Generation given out by the Classic Rock Roll of Honour Awards.