On January 3, 1889, he published the "Shosetsu-ron" (theory of the novel) as an appendix of the newspaper Yomiuri Shimbun, and from the same day, he began to publish a translation of "El Alcalde de Zalamea" (original title: The Mayor of Zalamea), a play of Calderón de la Barca, which he and his younger brother Takeji MIKI translated into Japanese.
1889年（明治22年）1月3日、読売新聞の付録に『小説論』を発表し、また同日の読売新聞から、弟の三木竹二とともにカルデロン・デ・ラ・バルカの戯曲『調高矣津弦一曲』（原題：サラメヤの村長）を共訳して随時発表した。