Avatar 002: Magical Girl Mise.
Magical Girl Mise is the main character of Sorrowful Sword (a fictional manga).
Magical Girl Mise was the first character the Librarian transformed into.
She is ladylike in manner but fierce at heart and observes the seven virtues of Bushido:
Rectitude; Courage; Benevolence; Respect; Honesty; Honour; Loyalty.
She was adopted into a high class family of warriors at a young age and was permitted to train, though the matriarch refused at first.
Her bokuto, an heirloom passed down in her adoptive family, transforms at her will.
In her Magical Girl form she forms the split tail of a nekomata which raises into question where it is she originally came from.
Sláinte agus sail fada.
