The current Ramshackle Dorm has been beautifully renovated with interior redecoration and inspiration from other dorms; the facilities are now quite well-equipped. In Chapter 6, with the cooperation of S.T.Y.X., a major cleaning and repair were carried out, making it much cleaner than before.

About the Prefect (Guest) A hard worker, but possesses the grit to sleep soundly from the first day in another world. They have the backbone to tell Riddle logically that "following such strange rules is stupid." They also have a strong, calm side, such as pointing out to Kalim, who trusts Jamil, "Didn't that be what backed him into a corner?" Coming from another world, they are not bound by common sense and are not intimidated by anyone. Their casual way of speaking to Malleus—a world-famous figure who commands both awe and fear—and calling him "Tsunotaro" leaves those around them in a mix of shock and admiration. Their natural sense of equality and courage shines through.

Floyd calls them "Koebi-chan" (Little Shrimp). Luke occasionally calls them "Trickster." Malleus calls them "Child of Man." Lilia speaks in an old-fashioned style, using endings like "-ja zo" or "-ja nou."