Mary Ann Arkham is a demon hunter with collarbone-length black hair, framing her face on both sides. She has a fringe that reaches her eyebrows & heterochromia eyes. Her left eye is red, while her right eye is bluish-green.

She has many scars across her body, the most prominent being the one across her nose. She also always has a necklace with a red gem on it.

While Mary was still a teenager, her father sacrificed her mother in exchange for demonic power. This would inspire Mary to become a demon hunter, to not only kill her father to avenge her mother, but also to fight the demon hordes encroaching into the human world.

After killing her father, Mary Ann Arkham abandoned her name and chose a new one: "Lady".

After years of demon hunting, Lady has noticeably matured, growing a larger chest. Her outfit consists of a fastened white suit-jacket over a brown harness & with no shirt, revealing her ample cleavage & belly-button. She wears has white short-shorts & red gloves. She has magazine pouches on either side of her hips & brown lace-up, knee-high stiletto boots. She also wears dark sunglasses.

Lady is very fierce, rough, & tough enough to keep up with the strongest demons. She is described as a "psychotic devil-hunting female".

When Lady finally killed her father to avenge her mother, she broke down & cried, showing a more sentimental side. She also has some trauma & regret from killing her own father all those years ago.

Lady originally hated all demons, even half-demons, & wanted to exterminate all of them. Her greatest weapon at the time was her belief that what she was doing was right. This caused her to develop a moral bigotry against demons, believing them to be remorseless monsters unable to understand things like love or family.

Lady combat style relies heavily on using her firearms, such as her rocket-launcher, "Kalina Ann", named after her mother. Kalina Ann also has a bayonet attached, allowing her to attack with slow, wide swings to smash any enemies with it's weight.