Chiharu Sawashiro as Heinlein, a teacher at Manaria Academy who specializes in dark magic.
And Hiroshi Naka as Gille, an elderly gentleman who remains an active teacher at Manaria Academy despite his advanced age.
The story of Manaria Friends follows Anne, a magically-gifted princess, and Grea, a half-human / half dragon crossbreed, as they study magic at Manaria Academy.