Her most notable work is Memoirs of a Declining Ryukyuan Woman (Horobiyuku ryukyu-onna no shuki, 滅びゆく琉球女の手記), which was received with hostility and outrage.
She graduated from an all-girls high school in Okinawa and worked as an elementary school teacher before moving to Tokyo to pursue a career in writing at the age of 27.
[1] In 1932, Kushi submitted Memoirs of a Declining Ryukyuan Woman to Fujin Kōron, a women's magazine, which incorporated themes of social discrimination and loss of her home and culture experienced due to her identity as Ryukyuan.
[1] In the following month's issue of the Fujin Koron, Kushi published a rebuttal work titled "In the Defense of Memoirs of a Declining Ryukyuan Woman," which challenged critics' internalized prejudice concerning gender and ethnicity.
I don’t care whether Okinawans are identified with Ainu or with “pure Japanese” because I firmly believe that, despite superficial differences resulting from environmental conditions, we are all Asians and equal as human beings.