since the first chapters it has been very obvious that the ml has given birth. this is most likely the result of some kind of experiment of the cult, explaining the reason why pharmacists would have any connection with this events + it would also explain all the imagery and syringes we saw when the cult was first mentioned. when it comes to male pregnancy there are lots of other ways to go about it other than just omegaverse... it just doesn't seem very likely, we don't need to limit the idea of mpreg being automatically linked with abo.
I wish this was the case, as someone whose least enjoyable genre is omegaverse, I would've found it far more interesting tbh. Ch 19 just about confirms this era and its events mark the beginning of abo in this universe.
There are still endless questions about the actual origins, why did the first man to give birth had to be Seong Su instead of any other manifested omega, whether it was a fully natural occurrence or artificially induced, how much truth there is to the "commandments", why is the timing of this supposed natural, biological evolution so conveniently coinciding with the millennium change and the subsequent religious cult proselytism it's being utilized for?
Half the clues point to man-made, technological advancement in the medical and pharmaceutical fields and the other half (such as the "Son" identifying pheromone scents) that it's truly a natural evolution branch. And you mention how it was obvious that Seong Su had given birth from the start, but that was only due to the context of the dialogue talking of the daughter being his copy etc. What about the lack of any physical signs of birthing on his body? Am I really supposed to believe he gave birth anally and didn't even tear to get some stitches? That's quite the unrealistic feat... And it's also why I kept hoping that for a story with a focus on details to provide clues, this would be of significance and a sign of a more complex truth. But I guess we'll see.
ok so i do obviously take back what i previously said about this not being an omegaverse mamhwa, it very clearly is after all lol. even i'm wrong sometimes... either way, i'm intrigued! i was already expecting an amazing story because of the author but this has been a very unusual ride so far!
for anyone interested in these kind of stories or twists on the abo universe, i recommend you play sweet pool! it's a nitropluschiral vn that also represents omegaverse in an atypical way (the reason probably being the fact that it predates the "official" birth of the genre), while also being dark and (cw) edgier.
this is all i have to say for probably a long time since this manhwa is clearly best enjoyed when you read it from start to finish.