A national worldwide government initiative has been launched to reverse the falling birth rates among demi‑human peoples who are starved of male members, threatening their lineage. Via a so‑called 'assistance scheme,' randomly chosen humans must pair with appointed partners—whether elves, sirens, or dragons—in the program's structured network.
Iris Thea Eaderlindt, an elven princess famed for her open‑mind and amicable stance toward humans, is moved in to the Ark Metropolitan Academy for academic purposes. Fortuitously, her new instructor is chosen to be her reproductive counterpart for the program. Eager yet resolute to safeguard her people's future, she engages in intimate relations with him within the scheme.
To her astonishment, Iris learns that his forebears were orcs famed for their remarkable sexual skill within the lineage. As additional demi‑human pupils enroll and uncover the instructor"s clandestine role, Iris struggles to maintain his exclusive focus on her throughout the course.
