Story
Ghislaine serves as a bodyguard in House Boreas and as a mentor to the unruly Eris Boreas Greyrat. When the seven-year-old Rudeus is hired as Eris's private tutor, it is Ghislaine who delivers him (bound) by carriage and reads Paul's letter aloud to him — admitting along the way that she was never taught to read. Rudeus undertakes to teach both Eris and Ghislaine herself reading, writing, and arithmetic; thus she gradually becomes literate.
She comes from the Great Forest and recalls her homeland reluctantly. Later Ghislaine is among those who aid in Rudeus's war: in the struggle for the throne of Asura she remains the bodyguard of Princess Ariel — effectively for life. In the decisive battles, her Sword King's blade is one of the few that is actually put to use.