Operating as a Parisian information broker, Riche is a dhampir who works alongside Dante and Johann. This trio collects and sells intelligence to clients, including Vanitas. Her work focuses on gathering critical information concerning vampire activities, curse-bearers, and other supernatural occurrences, exchanged for payment. She frequently appears with her associates in locations such as Galerie Valentine or human sectors of Paris, monitoring events and exchanging intelligence. Riche maintains a demeanor of quiet observation and analytical precision, offering insights that complement Dante and Johann's efforts. She actively participates in reconnaissance and information-gathering operations, leveraging her dhampir heritage to navigate both human and vampire society. Her key contributions involve tracking targets, identifying significant figures in conflicts, and relaying strategic details that assist the investigations of Vanitas and Noé. Though her personal history and motivations remain unelaborated, her consistent role within the information broker network establishes her as a reliable intelligence source.