In the "To Love-Ru" series, Peke is considered a female robot.

In the To Love-Ru series, Peke is indeed considered a female robot. Peke is a spherical robot that serves as an artificial intelligence system and personal assistant to the protagonist. Throughout the series, Peke is depicted with feminine characteristics, such as a high-pitched voice, a humanoid appearance, and is often referred to with female pronouns. Moreover, Peke is shown to exhibit emotions and a sense of loyalty towards the protagonist, further emphasizing her feminine identity within the narrative.