Dark Stalkers are a mysterious race who existed along Humans, though it is not known why Humans are not aware of their existence despite the Dark Stalkers' influential power on the world. It has been a tradition of a noble family of the Dark Stalkers to be the Black Rose Rhode Knight.
Dark Stalkers are shown to be fond of holding high status. They are also proud that the role of the Black Rose Rhode Knight belongs to them, shown by giving the best education to each successor of the role. According to Mutsuki, Dark Stalkers can live longer than humans and best live in the darkness.