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&mdash;who wants to follow in her father's footsteps in the CIA&mdash;captures Eris. Kio finds himself having to protect Eris from everyone.
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(Source: Anime News Network)