In a world where humans and beastmen coexist, beastmen can only be born from the union of a beastman and a human omega. Kai is a young human omega abandoned by his parents for being born into a family of alphas. He is taken in by Luard Siegfried, a wolf beastman and the head of the powerful Siegfried clan. For the first time, Kai is treated with kindness and freedom, and he begins to dream of becoming Luard's official mate. However, he soon learns that the Siegfried family does not form permanent pairs; they rely on multiple omegas to produce more descendants. Furthermore, when an omega enters heat, they are expected to mate with numerous beastmen partners. As Kai matures and waits for his first heat cycle, Luard grows increasingly distant, and Kai must confront his true purpose in the household: he is valued only as a vessel for bearing children. The story follows his emotional struggle between his deepening affection for Luard and the harsh biological and social realities of the omegaverse society. The narrative also involves supporting characters such as Daath and Juda Siegfried, and the story concludes with a glimpse of the next generation. This single-volume manga, a companion to Remnant: The Beastmen Omegaverse Saga, explores themes of duty, love, and identity in a world where reproduction dictates destiny.