Wiz appears as a minor character, transitioning from her original role as a shop owner in her home world to serving as the school nurse. She wears a purple robe over a lavender dress and has brown hair. Her responsibilities include conducting health examinations for female students, though she encounters difficulties accurately measuring the heights of Tanya and Filo due to their prominent cowlicks.
Her personality is consistently gentle and compassionate. She maintains a peaceful demeanor even when faced with hostility and rarely displays anger. However, she becomes confrontational when innocent lives are threatened, demonstrated when she abandoned neutrality to fight the Demon King general Hans after he killed a bystander. This aligns with her established background: prior to becoming a lich, she was known as the Ice Witch, a formidable adventurer who fought ruthlessly against the Demon King's army alongside her companions Brad and Rosary. To save them from a fatal curse, she accepted a deal with the devil Vanir, undergoing a transformation into a lich. This sacrifice altered her temperament, making her more meek and apologetic, though her core altruism remained unchanged.
In the film *Isekai Quartet: The Movie – Another World*, she is briefly included among the school staff members who establish behavioral guidelines at the story's opening.