Why was I born as an Omega?

Müller was a respected family who educate omegas before sending them to harems in which they are to give birth to noble beast children. As an omega born in the Müller family, Jill could not accept his own destiny. He who's unable to behave like other omegas, get ignored by his own family. Then kicked out by setting him up with Albert, a noble alpha beast and Jill's childhood friend.

Although he could not change his destiny as an omega, Jill promised himself that he would be happy even after marrying Albert.

However, one day, another alpha beast visited Müller family. His name was Diego, third son of the Siegfried family, the most respected noble family in the country. He came to get Jill, the rebel from Müller family into his harem.

Of course Jill rebelled against Diego's arrogance, but who knows how destiny will bring him?