Asteroid in Love centers on Mira Kinohata, who is dreaming of joining the astronomy club, when she enters high school. Her hobby was born because of a man, whom she had promised to discover new asteroids when she was younger. However, when Mira's high school life starts, she finds out that her school only has the earth sciences club, a club that consists of the astronomy and geology clubs. What is more, Mira finds out that a man that she wanted to see again so much is actually a girl. Alongside their fellow club members, Mira and her old friend Manaka Ao take part in various astronomical activities, hoping to one day discover an asteroid.
—Scientiiaa