Motosuwa Hideki is an eighteen-year-old student who just moved to the big city in order to attend cram school and get into the college he failed to get into the first time around. The first thing he notices is that everyone has a persocon, powerful computers in the shape of women. Hideki really wants one, but on a student's budget they are way too expensive. One day, Hideki has a lucky break and finds a working persocon in the trash. He takes it home and slowly learns that this persocon is truly one of a kind.