The omega doesn't know it yet, but she's mine.

I've never been anyone's first choice.
I would be happy living my life on my own, but that's not allowed, and my heat is coming. I have to choose an alpha before it's too late, but I don't want any of the alphas in my village, because they don't want me as I am. I'm not their idea of a perfect omega.
Then gifts start arriving on my doorstep. Things that are actually useful, not pointless trinkets.
I never get to see the mysterious alpha wooing me. He comes in the night, and all I have to identify him is his scent.

When I give in and follow that tantalizing smell, I find more than I bargained for, but maybe that's a good thing.