Shadow Liberation Front

The Shadow Liberation Front (abbreviated SLF) was prior to their destruction the second largest Lost Lands resistance organization (second only to the Yasugiru Knights after they were formed). They attempted to undermine Aizen's Rule over the Lost Lands several times with limited success.

The Liberation Front's military consisted of resistance soldiers and modified Shadow Blades, and was led by many surviving military Officers of the Lost Lands' orginal Armed forces. Many of these frames were provided by the Kyoto House, other were stolen during their numerous raids. The Four Holy Swords were an elite unit to pilot their more advanced frames, and were used as an "Ace in the Hole" against Aizen's forces.