Silver Rhythm Gang is Hamrio Musica's gang and the crew of the Advent. They are a motley crew of thieves and brigands, but are nonetheless loyal to Musica and his friends. Though much of their wealth was ill-gotten, it did enable them to buy a state-of-the-art air ship, the "Silver Knights." They occasionally join and help out Haru's group. They appear during the final fight to assist Haru and gang in reaching the Star Memory.