It's the fact that Yi An was deemed unsuitable to be king by his father simply because he's the second son but still he can't help but excel at everything.
Still, when his older brother stands up his own spouse, the Queen, he takes his place to save her and the Crown's face because he's compassionate and has a stronger sense of responsibility.
Still, when his brother can't take the burden of ruling anymore he's willing to ascend the throne in his place.
Still, both when his father was still alive and now that he only has his mother, Yi An is more of a parent to Yi Yoon than his actual biological parents.
All along, Yi Yan has always been the most suitable. For everything.














