[DeepL Translation - needs review] Rio, a fourth grader who is just a little bit smarter than everyone else, visits the home of Sanaka, a girl who has been truant from school, at the request of her homeroom teacher.
However, Sanaka is a super genius who has already graduated from a graduate school and holds the title of a mathematician! Rio is annoyed that she has been played for a fool, and she shouts carelessly in an attempt to mount her.
You don't have any friends, do you?
And so begins...
