When a wizard named Mendalus develops a spell that summons an obedient woman named Catherine--exactly like any other summoning spell--it creates chaos in the wizard-metropolis of Meltheria, as many interested parties struggle to understand the nature (and legality) of the Catherine spell, while vast fortunes hang in the balance.
A race that are always born as twins and only one recieves a soul. The other is soulless therefore without pity, shame, or guilt. The evil race. Can't tell them apart by looking at them.