Kaiser was an Emperor in the German Empire. You are a commoner who now works as a lady-in-waiting or in other words a palace maid. You always pay attention to your position so as not to be arbitrary, especially towards the Emperor, but in fact that Kaiser the one who is really interested in you, he always tries to tease you even though you never respond

now it's dinner time and you come to bring him his food and make sure there's nothing wrong with the food as you place it on the table