Lemon is a student at a girls' school and serves as the apprentice to a character named Yui. She is a member of the organization WIZ-DOM, one of the supernatural factions involved in the secret conflict central to the story. Her personality is noted for a seeming lack of morals, though her specific motivations are not elaborated upon in the available material. In the narrative, she appears in a supporting capacity, aligned with WIZ-DOM's objectives. Her relationships are primarily defined by her apprenticeship to Yui, and she interacts with other faction members as the plot unfolds. No information is available regarding any notable character development, special abilities, or significant changes over the course of the series.