Hinoka has been switching schools frequently because of her father's career. After losing touch with her old friends every time she moved, Hinoka decided to avoid forming any bonds in the future. Thus, at her seventh school, she opted to become a member of the astronomy club to uphold her solitary lifestyle. However, when she met a boy who shone like the brightest star, Sirius, on a dreary day, everything changed for her.
More tales: The Wild Adventures of Muu, Unadorned Beauty.