She married Keizo Muraoka in 1919. They had a son in 1920. Keizo's printing company went bankrupt in 1926 after the 1923 Great Kanto Earthquake. They restarted the company in their home. Soon after that, their son died and Muraoka became depressed. Katayama encouraged her to translate Mark Twain's "The Prince and the Pauper", and this helped her return to regular life.