Gate keeper

The story starts out with a young girl who is condemned and has to guard the Gate. By the gods order she and many others before their last breath were put to work as guards for these forbidden gate worlds. Can she escape to live her life or will she forget even how her face looks like? The masks given to them are to make sure no one recognizes them. Yet they are also forgetting who they even are except their names and crime.
Can they remember their memories? Their pasts? Or can they escape their fate of being guards for the rest of their lives?