Entirely average high school student Kimito Kagurazaka is snatched out of his regular school and sent to an elite all-girl school in order to acclimate the students there to both boys and to the culture of commoners.

While having their fortunes told by Kimito's phone, the girls discover that it can also predict their compatibility with members of the opposite sex. After Kimito asks Kujo to stop waking him in her usual manner, she is reluctant.