The setting of Blue Reflection: Sword of the Girl Who Dances in Illusions is a school in modern day Japan.
In Blue Reflection, Mel Kishida is the character designer and supervisor, and Keiichi Sigsawa, Yusaku Igarashi, and Kouji Natsumi are the series organizers.
Each of these four names combine their own original worlds to create the one world of Blue Reflection.