Angels originally were volunteer players who helped new players with common playing problems which many new players experienced due to NexusTK not possessing a very good tutorial system initially.
After a functional tutorial system was created, the Angels were disbanded. Unofficially however, there was rumors that Angels were disbanded primarily because of a few troublemakers who had abused their GM-level abilities for their own personal gain.
While some of the Angels moved on to become Archons, most of them were essentially "de-commissioned".
The decision to disband the Angels caused some bad blood between Hroth, Mordechai and NEXON INC., resulting in the resignation of both Hroth and Mordechai