I agree with the first bit. I think it was a case of misunderstanding for the past. Like--the MC started getting closer to the dad because he was originally a healthy father figure, and he actually developed feelings for the ML. Then manifestation hit, he was an omega in heat, and the father took advantage of him. To get out of that situation, he did what he could (video) and fled. (Or in a twist, there was never anything with the dad at all, it was with the ML in some way, ML doesn't remember, and the family tried to cover it up.)
The ML was already obsessed with the MC, chased after him, and ruined everyone around him to make him suffer. His mom found out and shipped him overseas (they'd have only been 18 (17 in the US)) where he stayed until he had the power and influence to come back.
I think in the end, his mom will take the omega away. Whether that's to MC's benefit or detriment, who knows? (But I get the feeling he'll probably be pregnant by that point) Either that or he ends up knocked up, and the mom helps him run away. What is questionable is why the right hand man doesn't want the ML to ruin the MC. Everyone knows something, otherwise they wouldn't have taken the ML away to protect the MC.
I think its going down the misunderstanding route where top misunderstood uke when they were younger, uke was probs sa’ed by tops father and thats why he had to leak them vids to get away from the fuckahh family, but the fuckahh son misunderstands and he too was also smitten with uke so he feels betrayed. uke gets sa’ed by the son as some sort of revenge for ruining his fuckahh family but surprise's surprise uke likes the son and lets him get away with it because of some big d and also because he’s an omega (in conclusion uke really can’t catch a break smh) then top finds out about his father’s work and so regrets what he’s done to uke. some chasing arc happens and then they somehow fall in love. neways…yeah it could go that way or some other twisted plot where uke still suffers tremendously.