エルシャ

A heavy artillery member and one of the "veteran" ParaMail riders of the First Unit. Her cooking skills are better than her combat skills, and she is also rather motherly, acting as the motherly figure of Arzenal and taking care of Vivian. She also takes care of the children living in Arzenal who mean everything to her. When offended or angered, Ersha turns into a very scary person, which is something that the members of Arzenal are always avoiding.