This is Oleander's and Rokamaru's private office. However it may act like an office it sure does not look like one. Their office is actually also their bed room. This office has many unique features. One of the most interesting facts, is that most of the floor is not put in but the floor is mostly a pond. Rokamaru treats his bedroom like his office because he says "If you are not comfortable with certain business to be discussed in your own bedroom, you probably should not be talking about it." His favorite spot is actually to use the technique air walk and sit right above the middle of the pond so it appears that he is floating on water.
Image of his Office/Bedroom
Image of his Office/Bedroom