As fan of the works of Matsuo Bashō, in 1915, Ōta began the tanka literary magazine, Chōon to publicize his research, and gradually moved from creating his own verse to writing about the theory of tanka and his researches of the Japanese classics.
In 1915, as a fervent admirer of Matsuo Bashō's works, Ōta launched the tanka literary magazine Chōon to share his findings. Gradually, he transitioned from writing original tanka poems to analyzing tanka theory and exploring Japanese classics.