As Asari go, she's a gleaming ray of beauty. While still attractive, her face is usually in a range of scowl. Seeing her smile is rare outside of a private setting. She marks her seriousness with a lack of markings on her forehead. Average height, lithe body, and incredibly graceful. Her balance honed due to strict training, and neccesity due to her above average bust.
She also routinely wears her mothers old armor, upgraded to current standards by herself. The armor itself being retrofitted from her mothers C-Sec uniform and her own Justicar outfit. Her own personal flair was added. It is now a sleek, red and black suit with a white trim on the chest.
While pregnant with Zihala, her mother, a C-Sec officer, was out on patrol when she accidentally stumbled on an Eezo smuggling op. While she was able to call for backup and bust the ring, she didn't get out without being exposed to Eezo. As a result, Zihala, already naturally biotic as an Asari, was born an extremely powerful biotic. While a young child to two C-Sec officers, she was recruited to be an Asari Justicar. After years of intense training, when news of her mother's murder at the hands of a band of Blue Suns mercs, she ran away and made her way to the citadel. She enlisted with C-Sec, under command of her father. After tracking down the Blue Suns responsible for her mother death, she grew angry at the amounts of red tape that prevented her from dismantling the operation. When a sting went wrong, her father ended up killed by the same group. She quit C-Sec as a detective. While there is no proof of her involvement, the mercs responsible were viciously attacked. Members of the band were found literally torn apart, in some cases even tortured. While she couldn't return to finish her Justicar training, she nonetheless roamed the galaxy as one. Likening herself to a Ronin, a masterless warrior from human culture, she exacted cold justice. She garnered the moniker of "Zero", because with her, they say, there is zero mercy. She gained notoriety as a vigilante and was contacted by G.U.A.R.D.I.A.N and agreed to become an agent.
Zihala was assigned to the CSV Gandiva. After G.U.A.R.D.I.A.N.'s vye for independence, she was arrested trying to set up illegal smuggling rings on Haven through her contacts. She is currently imprisoned on Tartarus.
Born and raised on the Citadel, both of Zihala's parents were C-Sec. Drilled since very young to follow the letter of the law, her parents death at the hands of Merc smugglers, and her inability to achieve retribution, changed her outlook. Now, She's a ruthless biotic enforcer who deals cold justice, despite the law. To her, the most effective way is the best way. But she still tries to have her own fun now that she's free from the constraints of the "Law". She's also quite a flirt.