Comet Hoshino is the main protagonist of the anime series 'Princess Comet.' She is a cheerful and curious princess from the Harmonica Star World, sent to Earth on a mission to find the missing Prince of the Tambourine Star World. Comet possesses magical abilities, which she uses to help those around her, often getting involved in various adventures. Throughout the series, Comet learns about human emotions and friendship, while maintaining her optimistic and kind-hearted nature. Her role is central to the storyline, as her journey unveils the intricacies of both human and star world interactions.