One night when Einar is traveling through the forest, she sees two stars descend from the sky. She inspects the crash site to find two strange girls that appear out of this world. Their names are Ailis and Cerise, they ask Einar to help them return home and claim they fell from the night sky. Einar is skeptical about their story, but she decides to help them out anyway.

This is where their fun little adventure through the forest begins. As Einar gets to know the girls more, she starts to wonder if they're The Star guardians her deceased mother used to tell her stories about.