The protagonist, Taichi Amano, who possesses the "Awakening Miasma," has had sex with many demi-girls. As a result, his power evolved, and he was chosen to marry and procreate with the rulers of the sub-human races: Hathor of the Divine Cow Tribe, Astraea of the Fairy Tribe, and Aruru of the Holy Unicorn Tribe. Moreover, as a racial trait, he apparently loses all romantic feelings for anyone other than his marriage partners!? The three women press him for more and more sex――. An intense and erotic struggle for an unprecedented protagonist begins.