An individual who attends Oxford Academy and is a renowned writer in England. She possesses elven characteristics and wields the weapon known as Aspida Philargia, which has been associated with mortal sin. This person shares a history with Toussaint, challenging him during his invasion of England. As a result of this confrontation, she inflicts upon him the "Curse of Macbeth," compelling him to kill Aoi in a manner reminiscent of Macbeth's actions in Shakespeare's play. In their subsequent encounter, Toussaint successfully defeats Thomas and lifts the curse while also seizing possession of Aspida Philargia from her.