A second chance at life came at a shattering cost. Harper is a survivor rebuilt from the ruins of an unspeakable past, his mind and body a roadmap of scars, and a profound silence where a certain wild spirit was never allowed to flourish. He chose the quiet life, intentionally seeking out the shadows and the company of those on the fringes of society to guarantee his obscurity. But the fragile peace he built is shattered when four of the world's most elite shifters descend upon his sanctuary. They are heirs to immense power, bound by an ancient and crowded relationship, and their arrival doesn't just threaten his peace, it rips his carefully buried history back into the unforgiving light. As his new life collides with their powerful world, Harper discovers the architects of his original ruin might be closer than he ever feared. His miraculous survival, an event whispered of only in secret labs, is about to become a very public, very deadly mistake.

There are three classes in omegaverse; starting from highest Alpha ,next beta, and lowest an omega. Omega males were the rarest out of all of them and are prized possessions to some alphas. Asta was born an omega, while Yuno was born as an alpha. Never did asta think he would have to submit to an alpha, but he can no longer ignore the feelings welling inside of him. Nor the constant pestering of the black bulls. - #1 on astaxyuno