Raissa Germaine Robin, also referred to as Liza Germaine Robin, is a supporting character in the anime Your Forma. She is a woman with dark olive hair and blue eyes who holds the occupation of police detective. Her more significant past role, however, was that of an Electronic Investigator, one of the specially trained officers who connect to the neural recording devices implanted in people's brains and dive into the accumulated records of human experience known as machine memory. In that position she belonged to the investigative apparatus responsible for solving major crimes, and her defining trait is the betrayal of that trust: Raissa is a former and corrupt Electronic Investigator who is ultimately revealed as the mastermind behind the E incident, a pivotal criminal affair that lies at the center of the story's investigation. Her motivations are connected to the scheme behind that incident, and her characterization emphasizes the willingness to turn the tools and expertise of law enforcement toward criminal ends.

Her notable abilities stem from her training as an Electronic Investigator and from a physical constitution that supports high-level information processing. This combination allowed her to carry out the demanding work of diving into recorded memories and handling the large volume of sensory and emotional data they contain, a skill she later exploits in carrying out her plan. Within the story's structure she functions as an antagonist whose past actions set the main investigation in motion, and her significance rests on the contrast between her former standing as an investigator and the corruption that the narrative exposes. Her key relationships are with the investigating officers and divers who pursue the truth about the E incident, particularly the broader law-enforcement structure that she deceived. Another character sharing her family name, Hugues Robin, also appears among the supporting cast, connecting her to a wider personal circle. Her development in the narrative is one of gradual exposure: as the investigation advances, the truth about her past and her role in the E incident comes to light, reframing her from an established figure within the investigative world into the architect of the very crime being pursued.