Konoe A. Mercury Personality

Prior to her descent into madness as Phantom, Konoe was a person who liked to do things her own way, a trait shared by her daughter. She is a kind-hearted individual who cares about her friends, especially her younger sister Celica. However, she was not easy on Kazuma. Although she seems to have a mature and serious personality, she can be somewhat impulsive and violent when angered, as shown when she attempted to use a fire spell on Bloodedge for annoying her. She was this way even with her lover, Jūbei, before falling in love with him as well as rash, headstrong and independent.

Before having her daughter, Konoe had more time on her hands to delve into magical legerdemain. This was likely due to the fact that she was the best in her field of expertise. Unlike her daughter who was a whiz with science, Konoe had an ability, charm and prowess with the magical arts. Being the best in her field and from her expertise and leadership, it was easy to see why she responded to others the way she had. These would psychologically determine her to be right-brained and eccentric, if not at least eclectic. Konoe also displays a poor sense of direction similar to her sister, seen when they walk together in the wrong direction during the search for their father.

As Phantom, however, all of her personality has seemingly vanished. She no longer speaks nor has any signs of any emotions whatsoever; becoming an empty shell in comparison to what she was before. While as Phantom, she attacks anyone who is deemed as the Imperator's foe, even going so far to attack Trinity Glassfille, one of her closest comrades, and her lover Jūbei. When her restrictions as Phantom are released, Nine retains her same arrogant tone and confidence in her abilities; however, she no longer has concern for the well-being of her former comrades and family. Despite this, she still retains her memories, taunting Jūbei about their former relationship before engaging him in battle.

However, in BlazBlue: Continuum Shift and BlazBlue: Chronophantasma, she shows signs of resisting, indicating that she is regaining her original sentience. In BlazBlue: Centralfiction, Nine is confirmed to have regained her original sentience from the beginning, but she has acquired a bleak view of the world from being driven mad through all the time she spent in the Boundary. She wishes to destroy it so she could recreate it with her desires in mind and is not above using those around her to achieve her goals. Fiercely determined and viciously vindictive, Nine wants to exact vengeance on the people who caused her so much pain and suffering. Despite her vendetta against Izanami and Terumi, Nine purposely worked for them for her own ends. She retains her characteristic condescension and arrogance, though taken to new and alarming levels, along with a stoic but nevertheless volatile disposition.

It seems she has completely detached herself from both her family and her former comrades, save for her sister, Celica. She undermines Hakumen for his attempts to stop her in achieving her plans and she punished her own daughter, Kokonoe, for using Celica in her plans. However, there are instances where she acts differently depending on the person she is interacting with. For example, she blames Ragna for everything that's terrible with the world and would not hesitate to punish him relentlessly. In another instance, she shows sympathy toward Tsubaki Yayoi, who she relates to with regards to being a helpless victim of circumstance.