Betty Smith is a key character in the series Robot Neoanthropinae Polynian. She is a humanoid robot known as a Polynian, designed to coexist with humans in a futuristic world. Betty is characterized by her upbeat personality and strong sense of justice. She plays a significant role in the series as a mediator between humans and Polynians, striving to foster understanding and cooperation. Betty's interactions with other characters often lead to humorous and heartwarming moments, making her a beloved figure in the series.