Under such situations, sorobun was created and was often used in yokyoku (Noh song) (sentences of the Kamakura period) which was popular among the military class and introduced the style of oraimono (primary textbooks in the style of the exchange of letters) which was widespread on a nationwide basis.
そこで当時士人の間に流行していた謡曲（鎌倉時代の文）詞章や、全国的に普及していた往来物などの口調を借りて用を足したことから、発生し、慣用し来たったものが、候文体である。