An indoor pool created for all those swimming classes and competitions, this place is complete with its own locker and shower room. Although it is mainly for it educational purposes, some students use this area to simply relax in its waters.

Despite the name, its not really a place to be picking your fights with others. The duel room actually serves as the place for classes on self defense such as fencing, often being a place some competitions as well. Some butlers do settle their differences here; although, doing such is against school regulations.