The protagonist 'Amano Taichi' who possesses the 'Awakening Magical Essence' has sex with many demi-human women, and as a result his power evolves, leading him to be chosen as the marriage and child-making partner by the pinnacle of demi-humans: 'Hathor of the Divine Cow Tribe', 'Astraea of the Fairy Tribe', and 'Aruru of the Holy Unicorn Tribe'. Moreover, as a racial trait they apparently lose romantic feelings for anyone other than their marriage partner!? The three of them press him for sex more and more. An unprecedented intense erotic battle over the protagonist begins.