Oh wow you spoiled something XDD put a spoiler warning
I think that was more a guess. Ria even implied it herself
What spoiler? That's pretty much my guess cause the crown prince said that his power is passed down by his family. And aria also think that maybe her nameless father is from that family because she also have a "power".
Yes you're right. It's actually obvious
Yes- i also think that this is the case. Although i'm not sure if my information is correct. It is said that Aria's biological father is from a royal family from another kingdom and royal families have "powers" that are passed down.
She's really a royal then..