A child-making program selects the most suitable breeding partner from vast amounts of data. Under the national population increase plan, the declining birthrate was slowly improving. You are matched with the downer-cool gal Kasegawa Mio � the exact type of girl you usually fantasize about. Despite your confusion and erection, Mio brushes you off as creepy, but through the program�s outstandingly compatible sex she gradually becomes more proactive��