Summary and Preview
There are aliens among us! This is what Kazuto learns one day, when he stops to consider sheltering a puppy from the rain. The puppy is actually a poisonous alien trap, which he is only rescued from by the intervention of an extraordinary girl! Recognizing her school uniform as coming from his own middle school, Kazuto manages to find this girl, Nanase Narue, and ask her out.
Though they both like each other quite a lot, the truth is that Narue is an alien, here on earth with her father, who is a Galactic Federation Investigator to Earth. This introduces countless troubles into their blossoming relationship, both from alien complications and from the debunking efforts of classmates that refuse to admit Narue is not human.