Short Description: Mimi is a blonde woman in her early twenties. She's usually wearing clothing that identifies her as either a pilot or an engineer of some sort.
Engineering: Before her grand adventures, Mimi needed to make sure she knew how to keep her plane in working order. As such, she worked and worked and... found herself getting as much into that process as she was into flying! By now, Halberd's many customizations were designed and implemented by Mimi herself.
Survival: Being stranded without fuel can lead one to pick up essential survival skills fairly quickly. But even before that, she was already excellent at navigation and orienteering.
Gunfighting: Mimi is a fairly good shot with a rifle and handles a pistol quite easily
Knifefighting: Things tended to go bad quickly in her adventures. Mimi has learned to knifefight by necessity, and has done so the hard way. This extends into swordfighting, as well, as she's learned to use her trusty machete as a weapon. Still, she'd not win any swordfights with a dedicated swordsman.
Acrobatics: It started with the trouble she got into in the Amazon, but she's slowly found, again the hard way, that one needs to be limber and agile on an adventure, as well as a good climber and jumper.
Hear the roar of the Twin Engines!
Mimi comes from an alternate Earth. In this other world, history was completely altered by the presence of a mineral crystal that, when electrified, has anti-gravity properties. While in the past it was a fun but ultimately useless trinket powered by static electricity for perhaps toys, with the proper harnessing of electricity it became much, much more. By the time of the Great War, everything changed. The war raged on for far longer, with perhaps just a lull in the 20s before going all out again in the 30s. Massive fleets floated not just on the oceans, but in the air as well. Alliances broke, reformed, betrayals happened. Nations fell, reformed, and rejoined the war later. In the end, however, the Allies still won, largely on the back of American Industry. Mimi was too young to fight, but after the war, this daughter of a general was quick to pick up a surplus night fighter and head off on her own adventures, exploring into the Amazon and across the south Pacific to the east indies. Before her adventures, she was already an excellent pilot and mechanic and a decent shot with pistol and rifle. She raced Russian spies to find the fabled City of Gold in the Amazon(it turned out to be mostly iron pyrite, unfortunately), survived months stranded without fuel in the Pitcairns, foiled a British aristocrat's plan to set himself up as a deity in Melanesia, fended off pirates near the coast of Australia, and narrowly avoided being captured by Japanese spies on Java. After that, she returned to America, where she decided she should have a nice vacation in Bermuda... Of course she flew there, and in the process crossed into the Bermuda Triangle... And then she found herself in Twisted.
Of course, the Great War eventually ended, and all that military hardware quickly became surplus. Surplus ripe for the picking by explorers, adventure seekers, and mercenaries alike. One of these was the young Mimi Valroon. Herself the daughter of a General in the American Air Corps, Mimi was too young to enlist herself in the WASP program during the war. Her personal surplus P-65b Crossguard is called 'Halberd', and has updated equipment to enable it to be flown by a single person if needed. The bulky military radar has been replaced by a significantly smaller civilian model useful for spotting landmasses and heavy rainfall, the freed up space now housing additional personal storage space easily accessible when landed. Other equipment has been miniaturized in the post-war years, allowing for additional free space within the cabin to the point where a bunk has been set up under the turret, which can be remotely controlled (with very poor accuracy) from the pilot's seat. Usually the turret is simply set to face rearward.
There are crystals from Mimi's Earth known as Varytitite crystals that, when exposed to electricity, counteract gravity and float into the air. This has been known of from lightning strikes for all of history, and small toys have been made of them using static electricity... but this world's industrial revolution brought forth powered flight. Generators, first steam, then diesel, create constant enough power to float entire vehicles into the air. At first, such vehicles were sailed the same as sailing vessels, but then propellers were invented to move them forward far more easily. This motion eventually evolved into airplanes, though most planes still use their engines to generate power to a Varytitite crystal for takeoffs and landings.