sound promising, can't wait for the next chapter :D

I'm confused.

I think this is a good start and my hat is off to you for writing in a foreign language! I know the feeling, I used to live abroad.

Here's some help:

All dialog is in " or quotation marks, no matter what. Using a single quotation mark ' is usually put in dialog when someone is quoting someone else. Or it can be used during a paragraph as way to express sarcasm:

Roy walked up to the giant castle. It was pretty grand to be someone's 'little home'.



I personal usually use italics for thoughts along with single quotation marks when people are thinking.

Here's some correcting of errors I saw in your story (for future reference):
'Was a full moon night.' is not wrong, just awkward.
'It was a full moon.' is a better way to state it.

"I'll go out of this castle." isn't correct, your conjugation doesn't agree.
"I'll get out of this castle." is correct.

"Don't believe in, princess Art." is again technically right, just awkward.
"I don't believe that, Princess Art." is better. And you should capitalize all proper nouns, including titles like 'Princess' or 'Mister'.

'In other place, five men are talking.' other is not the right word, but very close to the right one.
'In another place, five men are talking.'

'They want enter on Schwarz Kubere.' is really awkward, and not completely correct.
'They want to enter Schwarz Kubere.' is how I would write it.

"Ok, but we need have caution!" needs to be:
"Okay, but we need to be careful!" or "Okay, but we've got to be cautious!"

'In the castle, the girl called Riza was smile.' your verb tenses don't agree here.
'In the castle, the girl called Riza was smiling.' or 'In the castle, the girl called Riza smiled.'

'And start to sing again.' this sentence isn't actually a sentence, it needs a subject.
'And she started to sing again.'

'She finally will go out of this place.' has a verb conjugation problem and an order problem.
'She will finally get to leave this place.'

'Riza wake up easy.' has a verb tense issue and you need an adverb, not a adjective.
'Rize woke up easily.'

"Why I've dreamed with this?" needs a little tweaking.
"Why have I dreamed of this?"

There's probably some other things I've missed, would you like me to look over future chapters for you as a beta reader to help you improve your English?