The story is mostly about the life of Hideki Motosuwa who did not make it into a university, and so is called a 'ronin', a repeat student. Hideki tries to get into a university by moving from his farm and studying at Seki, a cram school in Tokyo. He is not used to women, but likes to imagine that he is. He wants to have a girlfriend and a 'Persocom'. A Persocom is a kind of robot that looks like a person, but can be used like a computer, phone, and a "partner" in some cases.