Slave Harem in the Labyrinth of the Other World - Chapter 196

Lin Qi transmigrates to a world of immortals. In this world, there are sword immortals who can behead a person from a thousand miles away, peerless great demons who burn mountains and boil the seas, and ancient gods and devils who can divine the heavenly secrets.

Civilization is destroyed and records lost. Only Dudian survives in a cryogenic sleep. Three hundred years later, Dudian wakes up and must become Dean to survive. Who can he trust in this world overrun by monsters without and within?

- Description from Novelupdates

Shiloh is an Dominant Omega, in a world where he lives Dominant Omega and Dominant Alpha only born among the elite. So when his father sold him to some 'Madam', everyone used him. Shiloh got a lot of bad treatment until he meets Gruvv, a Dominant Alpha. Gruvv himself has a problem, he can't smell pheromones because of his depression. He was never in a RUT again and his family was constantly looking for ways to get him to smell pheromones again. In the side, Gruvv is the heir to the DHURUDATTA family, a mafia family that also made Shiloh's father run away because of his debts.