Sister of Yui Kutuna. Muso flow had been raised as a fencing tradition person, but suddenly went to the government forces of research facility become a magician. Principal but says there was no fencing of rhinoceros, Yui has seen and or not than held out their own in order to protect yourself is a sister from the military. It has become a story of the key, the truth is told from itself. Ending is also slightly different.