It actually makes so much sense that they weren't shown having sex together. Personally I would have been quite mad if they did. Yes the manga showed many sex scenes but not a single one of them was romantic or even erotic, they were all dark and painful. Those scenes were never shown as something positive and therefore it's the only right thing to not end the manga with Sex between the only two likable characters
Yeah what you said is completely valid and totally makes sense too but imo after everything that the uke went thru, after all the emotionless, meaningless sex he experienced with various men, i wanted to see him make love. I wanted to see him not just doing it because he hates what he is or he wants something out of it or was forced to do it. I wish the author has shown us the contrast in uke when its done with someone he loves. Cos honestly with the amount of shit happening throughout the story that ending was not enough. There should be more chapters showing them being happy.
Oh btw i heared theres gonna be a sequel. Maybe id be appeased after reading that. Lol

*spoilers ahead*
Fuck why wasnt there a shotacon tag? If there was i probably wouldnt have read this. Its like a trap. Urgh soooo frustrating. And the worst part is the adult raping a child was actually shown not just implied. Fuck im so angry. There are literally predators like kyousuke out there and i hate it. The frequency was also shown, shit i feel so bad for the omega.
What up with that spineless alpha? Hes more of an omega with the way hes acting. Chikage even saved him! So useless. I wanted to shake hiroto so much! Like wtf yes hes kind but he didnt even properly fight for chikage until it was too late. Hes so helpless most of time with not enough conviction i started to hate him a little. I got so scared the bond wouldnt be broken.
Seriously author you make tons of sex scenes of chikage with various men but skip it when it was actually with his fated pair? WHAT THE F!
This couldve been good. Plot was good but last few chapters were so wrong and so f'd up it ruined this. Wouldnt wanna recommend it to others.