SLAVE.V-V-R (スレイブブイブイアール) is a vocaloid producer, active since 2014. He most often uses Yuzuki Yukari, Nekomura Iroha and Xin Hua, but he's also been using Crypton vocaloids. His work is recognizable by the fusion of rock and jazz sound, the often eccentric tuning and lyrics, and the self-produced MMD music videos. His videos have featured various characters derived from the original vocaloid designs, such as a version of Miku called ゴス音ミク (Goth-ne Miku)