Riko was just visiting the mall with her friend, Mana to an LBX model event. Upon touching an Assassin model, Riko finds herself transported to an unknown parallel Japan, falling from the sky while donning armor of the same LBX she touched. To complicate things, she finds herself in an unknown war where the worlds' inhabitants are fighting against metallic monsters called Mimesis. Riko initially thought this was all VR until she was save by a squadron of girls the same age as her and donning similar LBX armor as well. Accepting reality, Riko must survive as an Armored Girl...or die trying.
