Shadow Star Narutaru is a tV series anime that premiered in summer 2003, produced by Planet.

About the production: the story comes from a manga, there are 13 episodes of about 24 minutes and its current status is "finished".

Its main genres are drama, horror and supernatural, with themes such as Bullying, Urban Fantasy, Primarily Female Cast and Terrorism.

On AniList, Shadow Star Narutaru has an average score of 55%, an average score, and appears on 10,208 users' lists.

During her summer holiday at her grandparents house Tamai Shiina, a young and cheerful schoolgirl, meets a strange looking creature. They befriend each other and Shiina names it "Hoshimaru - The Round Star". When Shiina returns home after the summer to go back to school she starts meeting other kids that also have befriended a strange creature like Hoshimaru. But she soon finds out that not all these creatures and their masters are as friendly as Hoshimaru. (Source: Anime News Network)

Official synopsis from AniList.