Anna is a pretty young woman with long flaxen hair and lake-like blue eyes.
Normally, Anna is a reserved person who doesn't say much unless needed or spoken to. This changes when she is alone with Roland, or when they are talking about science. She becomes very talkative and lively, almost as if she was another person.
Anna is straightforward to a fault. She doesn't like beating around the bush and goes straight to the heart of the matter in conversations.
Anna is a studious and genius person; Karl noted that in his class she would always have more questions. Roland also noticed that she almost always has a book on hand to read. She is not only capable to learn scientific knowledge with incredible speed but also use it on practice
Anna is also a bit shy. This is shown when she says she isn't comfortable with showing acts of affection with Roland in public.
One day there was a fire in her house which resulted in the death of her mother. This was also the day she awakened as a witch. After her mother's death, her father would almost never let her outside of the house.
When mine collapsed she rushed to mine and found father with crushed leg being robbed by another miner. She used her power to kill a looter and was reported for being a witch by her father for a reward of 25 golden royals.
After hiring, Anna was led into the castle and told by Roland to practice her control of magic. During this time, she also started receiving lessons on science from Roland.
When she mastered flame control enough to not burn her clothes, Roland tasked her to fire cement and weld metal parts.
She revealed herself to townspeople while closing gap with made by demonic hybrid. After that she fainted due to magic exhaustion and had slept a week. She safely got over Day of adulthood, without the slightest pain, and developed her magic into green flame.
Anna possesses deductive prowess and insight that far surpass the norm of their world. She can easily understand modern concepts taught to her by Roland, making her one of the most intelligent people in the Kingdom of Graycastle, possibly in all of the mainland.
Anna has the largest amount of magic power in Witch Union.
Anna's original power was the ability to produce flames from under her body. She did not have any control over it, leading to her clothes burning every time she summoned them. After some pointers from Roland, she was able to precisely control her flame so that it wouldn't burn her clothes and come from any part of her body that chose, or even from a distance. She is also able to withstand any outside source of heat, from flames not made from her magic to molten metal.
Heart of Flame - After reaching adulthood, Anna's ability increased in power. She experienced an evolution alongside her adulthood, making her more powerful than most other witches. She can now turn her flames green, which can be hotter than ever before, or have a temperature as low as room temperature. She is now able to produce two flames at once.
Blackfire - After learning about the relationship between heat and molecular activity, Anna was able to evolve her power a second time. She can now sense the activity of molecules, as well as control and shape them. This turns her flames black, enabling her to make them even hotter and gives her the ability to form constructs with them. She is even able to give parts of these constructs different temperatures at the same time, as well as cutting metal into shapes that are precise and clean.
Anna has no attachment to her father, who neglected her after her mother died. This relationship was strained further when he sold her to be executed, even after she saved his life.
After being saved by Roland, she appears to have severed all connections with her father. However she gives part of her salary to him monthly.
Roland has had a profound effect on Anna's life. Besides Nightingale, she is the most loyal witch towards Roland and possesses a very deep love for him due to his kindness towards her and other witches.
After the second Months of Demons they eventually promised to marry sometime in the future.
Anna is a highly thought of member of the Witch Union. Several people have noted that all members feel at ease around her and that despite normally being quiet, she is actually very popular.