Elsa

Elsa is the queen of Arendelle introduced in Kingdom Hearts III, and originally taken from the Disney film . She is sisters with the princess Anna.

Kingdom Hearts Union χ
Elsa's power is channelled by the Book of Prophecies to form the Supernova - Elsa and the Anna & Elsa Medals.

Appearance
Elsa is a young woman with blonde hair and blue eyes. When Sora first encounters her, she wears a teal-and-black dress with a magenta cape and a gold tiara on her French braided crown twist bun. Eventually, Elsa switches to a blue dress, wearing her hair in a loose French braid that is swept over her left shoulder.

Origin
Elsa first appeared in the 2013 Disney film Frozen, voiced by Idina Menzel. She is a composite of two characters from Hans Christian Andersen's : Kai, one of the story's protagonists, and the titular Snow Queen herself.

In Frozen, Elsa and Anna were orphaned at a young age when their parents King Agnarr and Queen Iduna died in a seastorm. Elsa was born with the power to control ice, although it is never explained why. Due to her powers, Elsa developed shame and guilt after almost killing Anna in their childhood. Years later, on the day of her coronation as queen, Elsa accidentally reveals her powers and flees Arendelle in fear after being called a witch. While fleeing, Elsa accidentally puts Arendelle in a increasingly dangerous snowstorm. She builds a castle with her powers, creating Olaf in the process. Anna takes it upon herself to locate her sister and find a way to save Arendelle.