Ijiwaru na Tsugai

After being abandoned by his influential family for being an Omega, Akito Kisaragi sells his body for a living. On his way after work he got kidnapped by some masked men only to be sold at some underground auction. Reiji Asahina aka "the ruthless prince," of the Asahina Group brought him for 3 billion. Akito, who thought that he will be treated as a slave and plaything, is shocked when Reiji asked him to bear his child?! Akito, who has experienced a lot, didn't think much before accepting the offer. Akito, who always hated the omega heat, ends up yearning for it while being embraced by Reiji.

(Source: MU, edited)