I hope the story won't go to cliche romance where Dowun in the end is in love with the MC or vice versa, keep the tension be and let the girl be strong as her own, i feel like Dowun still has no feeling for her at all but as his tool and there's a huge chance for him to backstab her... after she got the throne i couldn't see any potential villain but Dowun himself.
Oh i forget the Bodyguard, he's far more suitable as love interest for our MC, the only light and genuinely good guy in this series, please don't kill him, he's precious.