Est is the youngest sister of the Whitewings trio. she ends up falling in love with Abel, an Altean knight in service of Marth. She is the most energetic and upbeat among her sisters, and will play an important role in this story.

By far, Est is the chatterbox among her sisters. Because she is a bit naive, Est is prone to getting herself in trouble, both at home with her sisters, and due to countless kidnappings. Despite her smiling, bubbly external persona, she feels far from it deep down. Est often wonders if she can really help those around her, and for that reason, she can be as reckless as Palla, if not more.