@AceTheBase
Yes, Stark has an older brother. We saw him in the 26th chapter. I cannot see Aura in the collage. There is a black-haired girl with some weapon but I don't think she is Aura. Apperantly she is a completely different character. I am not sure that if she is a temporary character or not.
About Stark-Fern relationship, as long as it developed well, both sibling or lover relationship is fine for me. But I don't like when some "shipping" stuff is thrown for fanservice and never sail. So, author should decide on that. (If they will have sibling relationship, I prefer no romance implication). BTW the boy on the collage really looks like Stark's brother, you should check 26th chapter