Wait he had to go to the academy and men are freakin tall in this series. I think he is what 14-15 at the beginning? Think about it he was still growing! He got ridiculously taller to signify he became an adult. The story is fudged like who goes to an academy for 2 years anyway, unless he was completing the rest of his schooling. So I think she was possibly 12 since she would have to be 18 to debute in society as an adult and just tiny as a child.
I mean it really didnt give us how many years gone by after the time skips which is really insane and sloppy.

What is up with the incestuous vibes. I can’t do this. Also it’s boring lowkey I don’t get it. Bruh I still can’t wrap my mind around this romantic atmosphere between them. There is literally NO reason for them to develop romantic feelings for each other when they grew up together (like her being what ? 6? 7? And him looking 20??) this is all so weird