Sylia Stingray ( シリア・スティングレイ, Shiria Sutingurei ) (spelled Silia in Bubblegum Crisis) is the 22-year-old ringleader of the Knight Sabers. Their main activity is fighting out-of-control boomers, half biological/half-mechanical robots built by Genom. In order to finance their activities, the Knight Sabers also accept paying jobs as bodyguards or mercenaries.
They were recruited by Sylia Stingray to battle the corrupt Genom corporation that dominates their home city of Megatokyo and which was responsible for her father's death. To enhance their natural abilities, they each wear a Hard Suit - each of them specialized in its equipment and performance according to the respective wearer's field combat role.
The Knight Sabers are a vigilante and mercenary team of four young women.