Mina is a minor character in The Case Study of Vanitas. She was one of the childhood friends of Noé Archiviste, along with Louis de Sade, Dominique de Sade, and three other children named Fred, Gilles, and Fanny. Her background is connected to the de Sade family estate where Noé was raised. She appears only in brief flashback sequences that illustrate Noé's early life. No further information is available in the source material about her personality, motivations, specific role in the story, personal development, or any notable abilities. Her significance is limited to establishing the circle of friends from Noé's past.