The Order of the Vigilant Sun is one of the Orders Minoris of the Adepta Sororitas. Founded after the death and martyrdom of Junia of the Order of the Bloody Rose, the Vigilant Sun are tasked with protecting Cardinal world Ceria and nearby planets. The Order of the Vigilant Sun are infamous for their heavy use of flamer weapons and their aggressive, almost fanatical attacks. Due to Ceria close proximity with the Imperial Sentinels fleet, the Order often fights alongside them.