Is there a kingdom that guilds don't attack each other?  If someone is going to attack a castle it should not belong to a guild i.e. being abandoned.
I am looking for a kingdom where i can play a relaxed game, not waking up in the morning to find that I was attacked and not only someone took my rss but now I also have to pay rss for the hospital.

There are always attackers in every kingdom. Unfortunately, you cant run from them. However, you can use shield and avoid attacks.