Shadow Charlie ignored the needs of his human and hung around with rogue shadows until he received a dire warning.
FLR2 was a shadow that other shadows despised. He thought that humans should serve shadows and not the other way around.
The S.A.S. (Shadow Authenticity Squad) sentenced FLR2 to shadow a still life object for not caring for his human. During this time FLR2 discovered he had powers such as shapeshifting.