Nansui Sudo became a reporter of the Ukiyo Shimbun (newspaper) (1878) and wrote stories about wicked women. After political novels became popular, he wrote such fiction and became well known. His Shinsho-no-Kajin (1886) was especially well received. Wrote every month for the Shin Shosetsu, a magazine of novels started (1889).
He joined the Osaka Asahi Shimbun (newspaper) (1892), left the paper (1905) and wrote novels for newspapers and magazines.
Also wrote a series of biographies and about well-known Buddhist priests including Honen, Shinran, Nichiren and Tenkai.