Episode list

Mira meets a boy named Ao at a campsite when they were little and Ao gets Mira into Astronomy. After that day, they had never seen each other again until high school when Mira joins the Astronomy Club.

The club goes to a riverside barbecue to collect various types of rock before looking at planets through a telescope.

Ao comes over to Mira's house to study for a make-up test, where she is introduced to Mira's sister, Misa, after which Mira and Ao work part-time at Suzu's bakery, where they are helped out by Suzu's younger sister Megu. Later, Mira and Ao come across fellow club member Mai Inose as she and Suzu partake in her hobby of following maps. Inose draws up a treasure map for Mira, Ao, and Suzu to follow, taking them through some of the school's landmarks.

For the Earth Science Club's summer camp, club advisor Yuki takes everyone to her grandmother's place, within spitting distance of several geological and astronomical highlights. The girls first visit the geological museum, where Mira brings what she believes to be a fossil she found during the barbecue to be appraised.

The girls go to the beach together, where Suzu gets jealous of Ao being so close to Mira and challenges her to a contest to determine who is her best friend. The next day, Mira goes to a mineral show with Mikage, who has worries about what kind of goal she should have for the future.

Thanks to help provided by the newspaper club, Mikage and Mai manage to bore a core sample from the school grounds for the culture festival. Meanwhile, Mira and Ao work on props with Mari, learning how she got her interest in astronomy from her grandmother. On the day of the culture festival, the Earth Science Club's café proves to be a decent hit.

The Earth Sciences Club is tasked with helping out at a children's stargazing event. As Suzu and Megu help the others get the kids under control, one girl seems disinterested. The next day, Ao comes down with a cold, so Mira and Mai come over to visit her.

Mai tries out for the Earth Science Olympiad. Later, the club holds a Christmas party, where Mari and Mikage give the others a photo album of their time together.

With the support of their friends, Mira and Ao successfully convince their parents to let them live together. Later, Mikage asks Suzu to help her make Valentine's chocolates for everyone in the club. On graduation day, the club members give Mikage and Mari some graduation gifts.

As a new school year begins, the Earth Sciences Club immediately get two new members, Yuu and Mikage's younger sister Chikage, the former of which wishes to pursue meteorology. The club plans to hold another barbecue for the new members.

Yuki manages to convince the event organizer to let Ao observe while Mira makes friends with fellow participants Asuka and Shiho. Back home, Mikage and Mari chaperone the remaining club members on another summer camp to the JAXA center.

While watching the stars, Mira and Ao discuss what dreams they'll pursue when they've achieve their current one.