Chi, originally known as Elda, is a central character in the anime series Chobits. She is a 'Persocom,' a humanoid computer, who is discovered by the protagonist, Hideki Motosuwa. Throughout the series, Chi seeks to understand the concept of individuality and love, as she learns about the world and her own mysterious origins. Her role in the series is pivotal, as her existence challenges the boundaries between humans and technology, while exploring themes of companionship, consciousness, and identity.