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.
Status: Finished Airing
Aired: Jul 7, 2003 to Sep 29, 2003
Producers: Kids Station
Duration: 24 min. per ep.
Rating: R - 17+ (violence & profanity)