Absolutetrash's manga / #Possessive lover(3)

Alpha switches the omega’s test results, so MC thinks Alpha is an omega and he is an Alpha.

MC is an alpha who finds his uncle’s illegitimate son (not related) who is an omega. He brings him home and turns him into his servant/fuckboy.

MC is an omega male who escaped from a research lab. After the lab exploded, he is the last omega. ML is a rich man who needs an omega to produce an Alpha with. He kidnaps MC with the intention of killing him after he gives birth.