Deviloof is a Japanese visual kei deathcore band, sometimes called "the most brutal band in visual kei" due to their violent visuals, fast riffs, double-pedal drums, blast beats, and guttural vocals. They play deathcore with elements of metalcore, brutal death metal, and grindcore. Current members are vocalist Keisuke (桂佑), guitarists Aisaku (愛朔) and Ray, bassist Daiki (太輝) and drummer Kanta (幹太).
https://www.last.fm/music/Deviloof/+wiki