After becoming King of Valla, Corrin had to many duties to fullfil to the his new kingdom, the principal one was making sure to maintain a stable peace between Hoshido and Nohr, which was easier said than done since some old grudges linger on between the two nations, but with the help of his friends and siblings he was in the way of fulfilling his dream of a peaceful world.
Unfortunately this hard oath he had chosen for himself had become quite time consuming, which meant he couldn't spend as much time as he wanted with someone who had been his most important ally, Azura.
Corrin had always thought that the time he had spend with Azura gave him a special perspective towards Hoshido not even his hoshidan siblings could give him, and he liked to think he had given her a special perspective on Nohr, that their unique backgrounds had made them prove that both kingdoms could coexist in peace, but that wasn't the only reason he had to appreciate her, he had come to develop feelings for her and he couldn't resist it anymore, he wanted to tell her and hope she would reciprocate.
So after managing to get some free time, Corrin left the castle and went to see Azura, finding her relaxing next to a nearby pond, singing a melody he found as beautiful as her, he was enchanted by the melody and walked towards her, now completely focusing on the tune, but as Azura stoped singed, he could feel his eyelids were getting heavy, having a hard time keeping them open, a sudden rush of fatigued went through his whole body as he slowly fell unconscious.
-----
As Corrin recovered consciousness, the first thing he saw confused him, above him was a man with white hair and red eyes, wearing a black and white attire befitting of Nohr nobility, he had a feeling this man looked familiar and it finally hit him when he saw his sword, the Yato, hanging from the man's hip, Corrin was looking at himself.
"Who are you!?" he said, confused by the sight but even more confused when he heard, that melodic voice coming out of him, Azura's voice.
"Calm down Corrin" the man said as he help him back to his feet, immediately noticing that his voice wasn't the only thing that had changed, long light blue hair fell down his face, trying to brush it off his face just to notice how slim his arm looked now, covered in a long white sleeve.
But the surprises didn't stop there, once he noticed what he was wearing Corrin started to have an idea of what happened to him, a white dress that resembled kishi's wings showing a clear hoshidan style, light blue lines ran down the garment, leaving his the right side of his waist exposed, a blue and golden flower design rested above his chest, just above what he feared to be breast, the exposed left leg completed the songstress look he had come to admire, now Corrin had no doubt he had become Azura.
"A-Azura?" he quivered as he asked the question, she just nodded in response, he had hoped to get even closer to her but this wasn't how he wanted to do it.