Born with the power to create ice and snow, Elsa one day accidentally zapped Anna's head with her power. Feared that she would harm her family, Elsa isolated herself from the world as well as her beloved sister.
Three years after the king and queen of Arendelle died, Elsa was crowned queen of Arendelle. During the coronation ceremony, her power was revealed. In fear, she ran away from the kingdom and into the mountains, where she created her own castle, snow guards, and dress to free herself from others.
When Anna attempts to bring her back, she zapped Anna's heart with magic, consequently freezing her own sister. Ashamed and frightened, she creates Marshmallow, a gigantic snow monster, designed especially to scare away visitors. Hans then tried to bring Elsa back with success, but her magic broke her from the cell. Later on, Hans told her that her power killed her sister. In tears, she broke down, stopping the blizzard storm. By then, Hans decided to strike Elsa with a sword, but Anna saved her by blocking the sword using her frozen body. Due to Anna's act of true love, she melted, and Elsa regained her throne and her happiness.