[1] Moriya was secretary and traveling assistant to temperance activist Yajima Kajiko, first president of the WCTU in Japan.
[2][3] In 1908, Moriya was appointed Japanese national chair of the Loyal Temperance Legion (Shonen Kinshu Gun) program, the WCTU's outreach to children.
[12] Moriya traveled to Washington, D.C., with Yajima and Chiyo Kozaki in 1921,[13] to meet with president Warren G. Harding and deliver a petition on disarmament signed by over 10,000 Japanese women.
[19] In 1955, Azuma Moriya was described as the leader of the Women's Public Welfare Movement when she attended a royal reception for Helen Keller in Tokyo.
[20] Azuma Moriya took temporary custody of two girls from Pohnpei, arranging for their schooling in Japan before they returned to the island as teachers.