Gunnthrá is a Book II character from Fire Emblem Heroes. She is the First Princess of Nifl and the younger sister of Hríd. She possesses the ability to communicate with others through her dreams as well as receive prophetic dreams. She shares this ability with her siblings. Performing the Rite of Dreams gives her more power over her dreams, allowing her to recall them in great detail even when she's awake. Gunnthrá is portrayed as being a gentle soul, capable of putting anyone who interacts with her at ease. This is seen through her communions with Kiran, where she speaks to them with a soothing voice, exuding an aura of calm intertwined with resolve. She believes herself to not be much of a warrior compared to Fjorm and Hríd, however, Fjorm believes that her magical prowess more than makes up for it. Gunnthrá's maintenance of a calm demeanor does not end in polite interactions, as it is portrayed to extend to adverse situations. Even while in hiding from Múspell, she never once breaks down in panic or fear, instead expressing joy and hope with each victory that Kiran and the Askran army seize.