Mist

ミスト, Alja,The Healing Spring Breeze (癒しの春風),Healing Breeze,Helpful Sister

“...No...I will not be the only one who runs away!”
—Mist, fighting Muarim in The Feral Frontier in Path of Radiance

Mist (Alja in the German version) is a playable character from Fire Emblem: Path of Radiance and Fire Emblem: Radiant Dawn. She is Ike's younger sister, and the daughter of Greil and Elena. She fights with the Greil Mercenaries out of a fear of being separated from her brother, using healing magic taught to her by Rhys. When the Medallion reaches its critical state, Mist is the only beorc to be affected by its call, and collapses in a similar manner to the Herons.

Mist appears in Super Smash Bros. Brawl as a Sticker, and in Fire Emblem Awakening as a recruitable SpotPass character.

(Source: Fire Emblem Wikia)