An official website and Twitter feed (@3boshi_anime) have also been published for the project.
The main cast of Mitsuboshi Colors includes Yūki Takada as Yui, Marika Kōno as Sacchan, and Natsumi Hioka as Kotoha.
Mitsuboshi Colors, a short-form comedy manga by Katsuwo about a trio of elementary school girls who form a secret club dedicated to protecting the peace of the city of Ueno (at least until the sun goes down), is being adapted into an anime.