I've been saying it since the Professor showed up that Ji-heon is his brother. The Senator father has a lot of kids out there, Ji-heon isn't the only one.
I also speculate that Wooju is not a Beta, he's an Enigma. Wooju's parents need to come clean as well. There is a connection between them, Ji-heon's mother, who we've never seen.
Think about it, Ji-heon meeting Wooju at the same daycare was not a coincidence, that was planned. Wooju has been watched his entire life I bet like an experiment.
The Professor is just picking up on where his father left off with Wooju or he is doing to. wooju what was done to Ji-heon's mother forcing a presentation, to impregnate Wooju and make either more dominant Alpha children or a dominant Omega.
We've got to get the full backstory this time Writer-nim!!!!
So if you think about what Ji-heon said about Wooju hating to go to the hospital, there you have a clue. This backs up my theory that Wooju was an experiment or has been experimented on. I don't think Wooju or Ji-heon's birth were ordinary. Their connection to each other is not by coincidence.
Remember season 1 Wooju's parents being suspicious of Ji-heon, even though they've been connected to each other since their daycare days, where Ji-heon's mother and her handles basically would leave Ji-heon on Wooju's fathers at random times.
Come on put it all together, Ji-heon and Wooju were meant to be together. The professional is finishing what his father started, if he doesn't want to breed with Wooju himself, he's gonna use Ji-heon too do it and hope to make an Enigma child.
Best guess. But is Ji-heon gonna bond with Wooju as he is presenting now or will he be a gentleman and not do that to Wooju, will he take him to the hospital???? Inquiring minds want to know.