This has potential...
I like your style of writing and the way you transition from one character to another even without a double space. Especially when it transitions from Ester to Kain by her looking out the window and by the end of the first chapter I did feel sorry for Ester and Rollan and it speaks a lot you managed to make me like them in so short of time. I like your dialogue, too it's nicely medieval but not too overblown or melodramatic.
Read the story now
A few things I have to say which are a bit negative but please just hear me out as I feel this story has a lot of potential.
The uncle murdering usurping the throne and the true prince standing up plot has been done to death now, Hamlet, Lion King are just a couple among many. I just think if you could maybe take it in a different direction it'll be much more refreshing as it is endanger of becoming formulaic.(You might have it planned out like this already, so if so, that'd be great!)
Two more things, you use 'here' where you should be using 'hear' and forget to put an apostrophe when you have an ownership eg; queen's room.
Otherwise, keep up the good work!