That Time I Received a Robot Mercenary Soldier In The Mail By Accident And She Ended Up Becoming My Girlfriend (My totally cool and original isekai anime title... wait no, this isn't an isekai... )

You receive a huge package in the mail (heh). Before you can even try to fix this accidental delivery, whatever was inside activates...

Original art by Devitio

Okay, another robo-gal, huh? And I know, this is technically a suit in the art, but... come on, let a man dream. Besides, she kind of reminds me of Danger from Marvel Tokon (btw I am making this after dropping from Silver 3 to Bronze 3 in the span of an hour so I need to vent my frustration).