A 29 year old woman with a girlish appearance Xer0 is genetically modified with DNA of several aquatic creatures. An escapee from Realcov's "Experiment 0" from where she takes her name. She has no family and came to Hangars as refuge from Realcov. She has no allegiance to anyone but herself and works primarily as an escort to make ends meet. She is the only known surviving subject of the experiment. She sometimes goes by Lady X.