Ilfa HMX-17a is a humanoid maid robot character from the visual novel and anime series 'To Heart 2.' Developed as part of the HMX-17 series, Ilfa is designed to assist with household chores and serve as a companion. She is gentle, polite, and earnest, sometimes struggling with her own sense of identity and purpose as she interacts with humans. Ilfa’s story arc explores themes of self-discovery, emotion, and the relationship between humans and artificial intelligence, making her an endearing and memorable character in the series.