Hitoshi Iwaaki (born 1960) is a Japanese manga artist best known for science fiction and historical works that examine human nature and society. His stories combine inventive concepts with carefully structured narratives, often placing ordinary people in extraordinary situations to explore moral and philosophical questions. His best-known work, "Parasyte," follows a high school student who is forced to coexist with an alien parasite that fails to take over his brain. It is a science fiction manga that explores the nature of humanity, life, and coexistence.