Zettai Junshu Kyousei Kozukuri Kyokashou: vol.1
In the year 20XX the male birth rate has dropped and humanity is on the verge of extinction. Measures needed to be taken to counteract the declining birthrate, so the country underwent the ?New SEX Act?. ?Sexual activity freedom permits? where handed out to able men, in the hopes of saving humanity. These permits allow the card holder to ?procreate? with any woman he chooses?