Fjorm is a character from Book II of Fire Emblem Heroes. She is the second princess of the Ice Kingdom Nifl and the younger sister of Princess Gunnthrá and Prince Hríd, and the elder sister of Princess Ylgr. She has the power to communicate with others through her dreams like the rest of her siblings, however, her power is less pronounced than than her elder sister's and she cannot recall her dreams in great detail when she awakens

(Source: Fire Emblem Wiki)