User blog comment:Dragon´s Blade/World Coexistence Alliance/@comment-24965182-20140922173744/@comment-24965182-20140922185247

It changes humans to help then to keep the pace with the monsters during the sex, but it says that humans can keep working and keep their normal lives, sex just becomes a little more important. And the only changes are more strenght, speed and stamina,  the lust cames in the relationship,  because sex between humans carries lust too.