I think this my first time reading an Alpha-Beta-Omega story. I personally feel a little iffy about the whole biological Alpha-Omega dynamism, but I feel like it's executed pretty well in this story. The plot twist/cliffhanger was surprising (as most plot twists are), especially as it was in the final part, but I feel like it added a new dimension to the relationship of the two protagonists - can they fight the concept of soulmates? Maybe the author is asking us: How is love determined? Through sexual desire and sexual compatibility or through falling in love with the individual person and loving them for all of their characteristics and all of your shared experiences? Edit: And out of these two, which love is real?
Warning! Serious spoilers here! The MC is not actually Oohashi Rei, she only thinks she is. The original Rei is basically a god that administers humanity, but she is going to try and kill everyone very soon, because her love for Claire is wearing off. Because of that, an AI that Claire created in the first Timeloop made a bunch of copies of Rei in an attempt to ceate a replacement administrator. The MC is the best of this copies and as such was put in this place at the star of the timeloop. This is also why some Rei look-a-likes will appear in the future. They are failed copies of the OG Rei that were given a place in the world.
Wow, I was curious about what the spoiler was, but did not expect this.
I honestly have no idea how the author will pull this off. But it sounds like a lot of fun. And kudos to the author for just going ham with the storyline.