Koisuru Asteroid: KiraKira Zoukangou

When she was little, Konohata Mira promises a boy she meets at a campsite that they can find an asteroid together. When she enters high school, she joins the astronomy club. But that year, the astronomy club happened to combine with the geology club, making it the astrogeo club?! Won't you find all kinds of sparkles with the astrogeo girls?

Kozue is a girl who loves astronomy, particularly the stars. One night, on an excursion to witness a meteorite, she meets Ginga, a boy who is able to help scientists discover more information about the stars through a mysterious ability of his. However, he is forced to stay in a protective suit in order to carry out his mission. Because of this, Kozue decides to convince Ginga to make his own decisions & to take off the suit using his own will.

The story centers on a 10-year-old girl named Shirushi Nishizumi who lives in the city, and the alien she meets after it crash lands in Inzai. The alien needs "Aruaru Energy" to be able to power back up its spaceship.

The story revolves around Kakazu Kio, an ordinary high school freshman living in Okinawa. A girl with cat ears appears before him during a memorial service for one of his family ancestors. The girl calls herself Eris and claims she is an alien. Before long, fanatical alien worshipers and a mysterious government agency are in hot pursuit of Eris, but Kio's childhood friend Manami—who wants to follow in her father's footsteps in the CIA—captures Eris. Kio finds himself having to protect Eris from everyone.