Pat's manga / #Adorable(507)

Omega isnt a weakling. He took 3 days off every month by faking of not compatible with the heat medicine every month. Alpha kouhai likes him and mated him but not on his heat, dragged along to be in this fake mate until the alpha heard about this. They ended up taking 3 days off together in the end to mate with no medicine.

Omega raised the alpha. Alpha is the son of the brother’s wife, so not related by blood to the omega. The family is an old fashioned one that doesnt accept any omega, so the omega is outcasted, he knows that the alpha child will be treated the same way, so the omega adopted him