Claim: Sanjugo Naoki had a historical novel serialized in a weekly magazine, which established him as a writer of popular fiction.
Evidence: In 1929, he had an historical novel, Yui Kongen Taisakki, serialized in a weekly magazine, and a similar historical novel about the Satsuma Rebellion, Nangoku Taiheiki, serialized in a newspaper following year. The success of these established him firmly as a writer of popular fiction.