I know each omegaverse is different but usually when an omega and an alpha mate, the alpha is able to tell who their mate is by their smell or can sense it. Why the hell did Haroumi not know that Kairi was his mate? Yeah Kairi said forget it but that doesn't mean you just forget the whole thing even if you didn't know their name. They were spending all that time together one on one and he didn't know! Also how the hell was Kairi keeping a straight face the whole time he was with Haroumi? He didn't give away his feelings or the fact they had a child together.
I know each omegaverse is different but usually when an omega and an alpha mate, the alpha is able to tell who their mate is by their smell or can sense it. Why the hell did Haroumi not know that Kairi was his mate? Yeah Kairi said forget it but that doesn't mean you just forget the whole thing even if you didn't know their name. They were spending all that time together one on one and he didn't know! Also how the hell was Kairi keeping a straight face the whole time he was with Haroumi? He didn't give away his feelings or the fact they had a child together.