Yuba

汤波/弓庭 ユバ

Gender:Female

Rio's paternal grandmother. She is a practitioner of spirit arts and teaches spirit arts to Ruri and Sayo. She serves as the village chief. She reveals that she is Rio's grandmother upon learning that Rio is the son of Zen and Ayame, but she tells Rio to keep this fact confidential and sends a letter addressed to Gouki.