Hyakuya Sect

The Hyakuya Sect was a religious organization at war against the Hiragi family, and they play a prominent role in the prequel series Seraph of the End: Guren Ichinose's Catastrophe at 18. Kureto Hiragi says they were once the most influential group of spellcasters in Japan, and claims they are an even more depraved organization than the Japanese Imperial Demon Army. In particular, they were interested in the "seraph of the end."

The Hyakuya Sect in Japan was believed to have been wiped out by Krul Tepes along with all of their guinea pigs containing the seraph gene. However, she saved the children from at least one orphanage and raised them in Sanguinem. Two of the children were seraph. Additionally, a few other seraph have survived the Apocalypse.

When the Hyakuya Sect was active, it ran orphanages to collect orphaned children. Without fail, they subjected the children to many insane human experiments. They used the children as guinea pigs.

Members

 * Mahiru Hiragi

Orphans

 * Mikaela Hyakuya
 * Akane Hyakuya
 * Yuichiro Hyakuya