In contrast to the formal shoin-style on the lower floor, the upper floor is built in the elaborately designed shoin mode in the sukiya (tea house) style. This chamber features purple walls, dark-blue ceilings, floors and walls made of iron sand, alcove posts, and glassware. The small space is filled with a variety of designs. This room and gunsei-no-ma used to be the most important rooms on the upper floor.