[wontaek]

Originally Posted by PastPrime

Spoiler:

Yorito is dressed plainly in the flashbacks, likely a commoner. Aono is dressed well, probably from a noble family. Perhaps it was her family, not Yorito's death, that was going to force her to live without him. Just a thought since this episode destoyed most of my theories.

I think this is a very plausible theory. Whenever you make theories about something, you should always start with ones that make most common sense and minimum disturbance to the people. Of course, people always want more fancy explanation, but any work of fiction would degrade into non-sense trash if they ignore simple, common sense explanation too much.