The first time, they were messing around with forbidden magic and experimenting on humans like guinea pigs. A domino effect later, it released a virus across the globe that killed almost everyone over the age of 13. You'd think they'd lay off the human experiments after that.

( He hmphs. )

The survivors didn't. It just made them want to experiment more, and with more intensity. They started brainwashing their numbers to go on suicide missions to protect their experiments and get them human subjects. They're a group of cultish fanatics.