I think Emilia needs a backstory...
Squid Research Lab: Investigation Report -345-C. Filed: Classified
Cadet! By now, you've probably advanced through the Hero Corps ranks, and have spent countless hours trekking through the Octopus Army Corps's underground factory facility, fighting to prevent them from breaching our defenses and taking the over world for their own. We salute you!
However, the purpose of this Report is not to congratulate you. It is to inform you with possibly our greatest, darkest secret. This information is only given to Heroes of considerable rank, as it generally only applies to them, and you are to tell none of this to the Rookies, or anyone of subordinate rank.
Back at the very beginning of this war, when the Octopi first created their underground factory, and our own Squid Investigation Lab created the Hero Corps, we attempted a very different method in assembling a team of defenders to combat the Octopi. Using the most advanced technology at the time, we fused the sciences of Gene Splicing and Cloning, in an effort to create our own super soldier. Most of this Cross-Breed's DNA was Inkling, seeing as the Inklings, as a race, are far superior athletically compared to the Octopi. However, we filled in our DNA's weak points with the Octopi's, which resulted in this Cross-Breed attaining our physical prowess and the Octopi's far superior knowledge on mechanical devices and warfare technology. It was the ultimate being.
However, due to complications with mixing chromosomes that deal with the eye and vision, the Cross-Breed's vision was impaired. Her eyes looked perfectly normal, and developed exactly as planned, but she was extremely nearsighted, and her peripheral vision was extremely blurred. As you would imagine, this was an undesired side effect for a being created for the purpose of battlefield combat. Unfortunately, our scientists lacked the technology and ingenuity to fix this dire problem.
So, the Squid Research Lab assembled a small team of Inklings to invade the Octopi's factory, with the ultimate goal of attaining information relating to the science of extreme vision-enhancing tech. This operation was a success, and we got all the information we needed, plus extra information that would be helpful in completing the Cross-Breed.
Using all of our most valuable materials, we were able to create a mechanical eyepiece, resembling goggles, that changed the way light entered our Cross-Breed's eyes. This process corrected her eyesight, and also improved it far beyond what we could have hoped for. This eyepiece could be firmly attached to the face of Emilia, as our scientists endearingly called her, but could also be removed easily, in the event that this was necessary.
The development process, as should be expected, took a fair amount of time. During this period, our engineers worked on designing combat apparel and weaponry for Emilia, once she was to be released. Eventually, the engineers managed to develop a groundbreaking piece of I.D.T., and this was the weapon with which she was equipped. As for apparel, she was to wear minimal, form-fitting black clothing, so as to allow for maximum flexibility and minimal drag and target size. Of course, she was given combat boots to wear, which were designed to maximize traction and grip. In order to allow her to hold and fire her Ink Gun for extended periods of time, as well as to make hand-to-hand combat easier, we designed fingerless gloves for her to wear out on the field.
Finally, we designed metallic alloy plating to be worn over her upper leg, in order to protect an extremely vulnerable, sensitive nerve located there. This plating was designed from a flexible, light kind of metal, and was further tampered with by mixing in a tough, durable metal. This resulted in a suitable piece of armor to protect this nerve. The nerve is believed to have developed as a result of DNA tampering, in a similar vein to the reason the vision impairment occurred.
Soon, Emilia was fully developed and ready to be sent into combat. However, mere hours before she was due to be released from the Development Chamber, disaster struck.
The Octopus Army Corps, upon having discovered that we had stolen their technology, formulated a plan to retaliate and take back what was theirs. The stormed our Lab, and released Emilia from her Development Chamber, which she exited in a comatose state, as was expected by our scientists. However, the Octopi took advantage of this weakness and carried her away to their factory, along with all the expensive equipment we had created specifically for her. For several years, we had no idea of her fate.
Due to the unprecedented expensivness of Emilia, mostly due to the unexpected vision and nerve complications, and the cost of rebuilding after the Octopi raid, we lacked the resources to make another Cross-Breed, and the Squid Research Lab needed a new way to combat the Octopi. Seeing as the operation to steal info from the Octopus Army Corps was a success, they eventually decided to train and recruit the most physically fit, mentally capable Inklings into a group known as the Hero Corps, the very same group that you now serve. This team proved successful, and it grew in size as time went on. Emilia was long forgotten by all except the most involved scientists with her creation.
A few years later, the Hero Corps started reporting some of their higher-ranking members being mysteriously gunned down by a shadowy figure, who would appear, shoot, and then disappear into the shadows. She was presumably Inkling-like and bipedal, and obviously an expert marksman. Few expected it was Emilia, but when a photo was finally captured by one of our most respected generals, there was no doubt. Emilia, after being kidnapped, had been equipped with the clothing and weapons we had designed for her, and because her first memory was inside the Octopi factory, she had grown to believe that she was born there. We currently believe the Octopus Army Corps influenced her, and she now fights for them as though she were one of their own. You may have seen her before, and this is the very reason we are telling you this. She is extremely dangerous, and cannot be reasoned with. If you get the opportunity, do not hesitate to gun her down. Her only memories are of those with the Octopi, and, thus, there is hope to turn her in our favor. We only tell you because you are, most likely, now of the rank that she prefers to target. For whatever reason, perhaps because it is more of a challenge, she seems to take a pleasure in killing higher-ranking members of the Hero Corps. Her extreme prowess will maker her difficult to take down, but it also this physical prowess that is giving the Octopi an upper hand in combat, and she threatens to wipe out our Hero Corps. We hope you understand why she must be eliminated, and put our full hopes that you will follow through as told.
Good luck and Godspeed!