The Burmese Dah Zey is a ruthless organization notorious for the illegal and dangerously scary and unsanitary black market business of unwinding. They abduct runaway unwinds and allegedly unwind them by using rusty, old equipment and no anesthesia, thus inflicting excruciating pain.
In UnBound: Unnatural Selection, it is revealed that they lock the kids in small rooms until they are shelled, which is unwinding and disposing of the brain. It is also revealed that they experiment on some kids, such as Kunal, who was given hands for feet, Marisol, who had four eyes of all different colors and four arms, and Jenson, who was given two extra ears where his eyes should have been.
The Day Zey's biggest rival is Divan Umarov.