The ST Clan are an honourable mercenary group that are currently operating on the Cosmic Nullius. They usually hire themselves out as bodyguards for people or objects and act as a kind of police when tasked to do so. Because the Cosmic Nullius cannot have its own police force, as it has no overarching governing body, the laws vary greatly, giving the ST Clan, and other clans, much importance. The Clan is led by ST Clan Leader, who refuses to divulge his true name. The Clan was hired by Clear, the Ambassador of Mars, when she was assaulted by several criminals and orions that tried to take her as a slave.