She was infected after a hemophage was killed in the hospital she worked at. She was later taken for study since she was pregnant. After losing her child and husband, she joined the insurgents and began to attack the government.
During her infiltration of the Arch Ministry headquarters, she was discovered and forced to fight her way out. Although ordered to destroy the anti-Hemophage weapon, she evaded pursuit and returned to the Hemophage safehouse.
After deciding to save Six, she was forced to flee and fought her way out of the building.
The film revolves around her rediscovery of her faith in humanity.