Blair is very good at understanding other people and even showing kindness to others who are troubled. Though she is a cat, she is not mean at all, though she can act overly friendly to Soul. She is always looking for some fun, whether it is harmless or not. Playful and fun-loving, she is quite an affable person. She is well endowed, which is used when she flirts with Soul. In human form, she takes on the appearance of a young, tall woman with large chest and an alluring figure. She has long violet hair with two strands on each side of her face that curl up and around to resemble her tail. While she’s wearing her hat, her hair is tucked underneath it, except for the curled strands. The bauble she wears in her cat form can be seen below her neck. She has a set of purple cat-like ears with pink tips instead of human ears, which are initially hidden by her hat. Her black witch's hat coils around at the end and retains her bright yellow cat eyes. She also has a curled up purple cat tail that resembles her cat form one. Her lips are curled like the shape of a "3" to represent those of a cat. She also has two little sharp fangs in her mouth in human form like a cat's. her signature witch outfit consists of a black-blue dress that shows off her shoulders and wraps around her neck, long, open sleeves that reveal her hands and shoulders, a short skirt with a white frill and long high-heeled boots that curl upwards at the toes. When fighting against Mizune's human form, she keeps her hat and boots but switches her dress for a black-blue bikini top under a similar-colored coat with a fur collar, and matching shorts. Blair is seen on top of Soul as she wakes him up, which surprises him. She then smothers Soul with her chest and offers to have fun with him. Maka then walks in, having prepared Soul breakfast. Blair then wishes Maka a good morning. Soul gets kicked out of the window immediately afterwards for being seduced by her. While Maka and Soul recover from injuries and the loss of Crona in their apartment, the barely dressed Blair pushes Soul into her, causing him a nosebleed, Maka notices Blair's chest, then grows irate at Blair's behavior towards Soul. Blair pulls Maka in for a hug, claiming three is more fun. Maka's eyes again glaze over as her face is close to Blair. The scene ends here without clarification as to what happens next. Soul and Maka met her in assumption that she is a witch, trying to defeat her and failing multiple times, while Blair was just overall impressed and using her pumpkin cannon ability, then eventually they get the chance to strike her down, but it turns out she is indeed not a witch, but rather just a cat with super magical powers, she has a cat form too, they end up adopting her in their dorm together. Blair speaks in third person, she is not attracted to anyone in specific—her purpose is just to seduce alone and to have fun with no other reason in specific and has no specific target, or gender. Blair speaks in a cat way, too, often saying "nyan" and other stuff to mix up with her sentences alongside a "~".