Toshio Masuda
is a roman à clef written by Daisaku Ikeda, the third and honorary president of the Soka Gakkai, chronicling the efforts of Jōsei Toda, the second president of the Soka Gakkai, to construct this Buddhist organization upon his release from Sugamo Prison at the end of World War II. "The Human Revolution" has sold millions of copies and served as the source of two film of the same name produced by Toho Company and directed by Toshio Masuda. The novel was printed in 30 volumes.