Aria was a wealthy girl whom Tatsumi met at the capital. She harbored a dark family secret, despite her kind appearance.
Aria was a young girl, with blonde hair, shoulder-length, topped with a fluffy light blue acessory, and blue eyes, she was wearing a white long-sleeved shirt, with a light blue ribbon on her neck, above her shirt, she wore a sleeveless light blue dress, with a black bodice, and white frills, she wearing white boots.
Aria initially appeared to be a very kind and caring girl, but this was just to disguise her true nature, in reality, like her parents, she was cruel and sadistic, enjoying picking on those from the peasants, and torturing them until they died. Aria was also quite manipulative and hypocritical; with a sweet and friendly look she tricked her guests, and also initially had a hate for Sayo due to her hair style.
Aria was a girl from the capital that offered Tatsumi a place to stay when she found him on the streets after being conned by Leone. She came from a wealthy family and had a habit of offering strays a place to stay in her mansion. She then introduces Tatsumi to her parents who agrees to help Tatsumi find his friends, Sayo and Ieyasu who were separated from him.
The next day, Aria had Tatsumi helped her in her shopping with her guards and by the night time of the same day, Night Raid came to attack her house as Aria and one of the guards tries to hide in their "storehouse" as Tatsumi manages to find her with Akame arriving shortly after. Tatsumi then attempts to defend for Aria, unaware of Aria's true nature until Leone reveals the contents of her household's "storehouse" as Tatsumi looks on in surprised as he finds his friends in there as well.
Learning of the truth of how Aria and her family had an interest of luring people from the country to their place and torturing them to death which was the Night Raid dispatched to kill her parents. Aria was then swiftly killed by Tatsumi after he witnessed the death of his two friends, Sayo and Ieyasu, at the hands of Aria's family.