The half-human, half-elf Ober grew up discriminated against by his own family due to his mixed heritage, but one day a prophecy flips that life upside down. Now declared as the future head of his family, the sisters that once mistreated him are ordered to serve him and bear his children.
It is an age when daemons and humans still live side by side, the Royal Abbey is the most renowned - the alma mater of the majority of elite government administrations. One of its students—the lowest-ranking of them all—Ruin is appointed as a military captain in the far-flung hamlet of Boobshire.