Sumi Urano

浦野 すみ
Sumi is the younger sister of Suzu and cares a lot about her. In her younger years shes portrayed while shes either helping Suzu with her chores or playing with her. During the war time shes works in the Joshi Teishintai a female volunteer organization troup in Hiroshima. In her adult years shes portrayed as a caring but also critical thinking character which can also be very straightforward to her sister Suzu.