Gengetsu (げんげつ, lit. Moondog), real name currently unknown, is a renegade Reikon Kyuuban with a grudge against Shinigami, Humans and Vizards. He has homes in three consecutive cities, and moves between them frequently to "keep up with the gossip". Gengetsu is also an agent of the Collective Vices, usually partnering Anko Tayuya within the organization and, on occasion, working with Bansui Amatsuki. However, he'd be considered an oddity amongst the criminal world. For one, he wouldn't inhabit either the "good" or the "bad" side. It would be more apt to describe Gengetsu as occupying a "grey area", for he usually does whatever he wishes to do, paying little heed to anything but his own goals and objectives.