Blue Delmo C (青デルモＣ Aoderumo C) is a Blue Delmo member.
Blue Delmo C has brown hair, which she fashions in two buns, in what is known as an odango style. She is always seen in her Blue Delmo uniform.
Later, she was part of the Blue Delmo group which captured Maypia Alexymetalia and Gozo Aida during their attempt to infiltrate Hagen's ship. Presumably she was knocked down when Maypia and Gozo escaped from them.
During the events of Silver Wild Grapevine, she was part of the Blue Delmo squad which barricaded themselves in a corridor in order to stop Aika from pushing deeper into the base, towards the Delmo Commander's office. There, she is seen laying on her stomach and holding her rifle, as part of the 4 girls who form the initial line of defense.
When Aika takes care of the other three girls who accompany her, it seems as if Blue Delmo C might be able to last a little longer, since our heroine knocks out the first girl by falling on top of her back and disables the other two with precise blows to their necks, using both her hands. However, this is not the case, as Aika hastily takes care of her by landing a devastating hit to the helpless girl's neck with none other than her foot, sending her gasping as she arches her back and lifts her butt.
Thus, Aika knocked her down together with her comrades, setting the context for the 4 girls simultaneous crumbling as they fall unconscious, one of the most iconic scenes of the Agent Aika scenes.