Instead of Kaisho, which had been the main calligraphic style of the setsuyoshu in the Muromachi period, a writing style called 'Shinsonigyo' (also referred as Shinsonitai), in which Kaisho and Gyosho (a cursive style of writing Chinese characters) or Sosho (a very cursive style of writing Chinese characters, more abbreviated and flowing than Gyosho) were written in two rows side by side, came to be widely used.
室町時代の楷書中心の書体から、楷書と行書・草書を二列併記する「真草二行（真草二体）」が広く使われるようになった。