It's omegaverse but it doesn't play a huge part in the story. Granted there are some key moments that happen because of the omegaverse aspect but it is not the main element of the story.
This story is really good and I think you should give it a chance before taking it off your list
I would recommend it because the plot is actualy quite interesting, the omegaverse affects a main event in flashbacks but otherwise is not central to the story.
Is this omegaverse???