Supercell Is A Musical/illustration Group From Japan. Ryo Is The Composer And Lyricists Of This Group. He Uses A Vocaloid Called Hatsune Miku Http //en.Wikipedia.Org/wiki/Vocaloid. Official Website Http //www.Supercell.Jp Official Blog Http //supercell.Sc Wikipedia Http //en.Wikipedia.Org/wiki/Supercell_ Band