The Organization

Valkyrie is an organization of Defiled beings who are capable of retaining their humanity and controlling the demon that possesses their recently deceased bodies. This is possible via a soul bond- the Defiled corpse binds his/her own soul to a living being that shares a bond with the recently deceased person. This person is known as a Paladin.

It apears to be the ultimate goal of the Valkyrie to eliminate the Defiled.