Tsuruko Aoyama

Tsuruko Aoyama (青山 鶴子 Aoyama Tsuruko) is the one currently entrusted with the keeping of their family's dojo; the Shinmei-ryu school of swordsmanship and the elder sister of Motoko Aoyama. As she is not expected to be active in running the school, having given up the life of the sword for marriage, it is her duty to hand the school over to Motoko when she is ready.