Hanne was born to Jarl and Ylva Brum. As the head of the drüskelle and a firm follower of Fjerda's customs, Jarl had hoped for a son and was disappointed when Hanne was born a girl. Ylva wanted Hanne to be demure and feminine and worried about Jarl's continued inclusion of Hanne in his excursions. Undeterred, Jarl often took Hanne out on camping trips and hunts, honing his child's love for the outdoors which Hanne retained all throughout life and, much to Ylva's disdain, would encourage Jarl's intent. When this proved to be the case, Hanne was sent to a convent in Gäfvalle in hope of reigning Hanne in to be more feminine.
King of Scars
To be added
Rule of Wolves
To be added
Nina and Hanne’s relationship becomes official in Rule of Wolves. Nina says that she isn’t good for Hanne, but Hanne says: “I know all the things that aren’t good for me and I want them all the same.” Hanne tells Nina “never let me go” and Nina replies with “never.” Nina kisses Hanne and the next morning Hanne’s mother finds them with their clothes half on. Later, Hanne accidentally uses their Heartrender powers on the Fjerdan prince, Rasmus Grimjer, out of fear, crushing his heart. Hanne tailors his face to look like theirs and their face to look like his, then pushes his body off a tower. Nina sees who she thinks is Hanne lying dead. Nina grieves for the loss of Hanne and contemplates if all her love ever does is hurt people. Hanne gets close to Nina, still pretending to be the prince. Nina considers killing the prince, but starts to notice things about him, like his unusually full lips and strange voice. She asks the prince where they met in an attempt to confirm her suspicion, and the answer she receives is where Hanne and Nina first met. Nina runs to Hanne and they kiss, then repeat what was said before their first kiss. Hanne and Nina decide to keep up the charade and rule as king and queen of Fjerda. In the couple’s last appearance, Nina helps Hanne pick out a new name as Hanne cannot stand being called the prince’s name. They discuss choosing a saint's name, but Hanne does not come to a definite decision.
- While the character is referred to with feminine pronouns, Hanne has stated a feeling of comfort in a male body when tailored to look like Prince Rasmus. It is unknown whether Hanne identifies as nonbinary, a binary transgender person, or gender non-conforming/genderqueer.