Seijin no Sentōki
The Saint Fighters are power users who attend Heisei Gakuin and are members of its student council. They are Takatsu Aoba's subordinates.
They appear in chapter 117 to fight Kouji, who intervened in the battle between Aoba and Ogami. When they engage Kouji, he uses Kamikaze to cut all their clothes, revealing that they are all cross-dressing girls. He then tells them that bashfulness is a sign of femininity, and women are not needed on the battlefield.
What happens to them afterwards is unknown.
Holy Blood: An ability shared among all the Saint Fighters, they are able to use their blood as weapons and forge it into whatever weapon they wish.