Kikuko Kanbe

神戸 喜久子

The grandmother of Daisuke Kanbe. Kikuko is a serious and stern woman who genuinely cares for her grandson, but recognizes his faults and is not afraid to call him oput on these flaws. She seems to be close to traditional Japanese culture, making green tea for Haru using a chasen. (Source: Fugou Keiji Balance: Unlimited Wiki)