Well, without more context, it's hard to say precisely. It could be a children's story, where the moon and stars are personified. The moon could be a friendly character that watches over the earth at night, and the stars could be like its little helpers. Or it could be a more scientific - based story that explores the formation of the moon and stars, told in a narrative way. For instance, it might describe how the moon was formed from a collision with the earth long ago, and how the stars are born from nebulae. And then there could be some fictional elements added to make it an engaging story, like a character who is on a quest to understand the secrets of the lunar and starry universe.
I'm not sure specifically what the 'lunar star story' is about as it could be many things. It might be a story related to the moon and stars, perhaps a fictional tale of adventures that take place in a lunar or star - filled setting.
The 'lunar star story' could potentially be a story about the significance of the moon and stars in a certain culture or mythology. For example, in some cultures, the moon is associated with femininity and the stars with guiding spirits. It could also be a modern - day fantasy story where the moon and stars have some sort of magical powers and the characters in the story interact with them in different ways. Maybe there are characters who can travel between the lunar surface and the starry sky, and the story follows their journey and the challenges they face along the way.