Heavy Rain

The black-eyed outsider, Haejin, saw “family” as a warmth he wanted to protect for his entire life, even if it cost him everything. However, what arrived in the place where the blessing of turning twenty should have reached was a cruel tragedy instead. In order to save his broken household, Haejin offers himself up as merchandise.
His counterpart is Lyle, a cold-blooded tycoon of the business world and a dominant alpha extremist. To him, Haejin is nothing more than a disposable object meant to relieve pheromone congestion.

Despite being a dominant alpha himself, Lyle harbors an extreme hatred toward omegas, and Haejin is treated strictly like a tool. Amid servants who humiliate and abuse him under their master’s indifference, Haejin’s body and mind gradually crumble away.
As days piled up that were exhausting just to endure, news arrives of the death of the parents who had been his only support. Leaving behind the life of nothing but suffering in the mansion, Haejin disappears.
It is only after that—after thinking of him as nothing more than an easily taken omega, that something begins to go wrong for Lyle.