Isane Kotetsu and her little sister Kiyone Kotetsu was abandoned by their parents, Isane was 10 years old and Kiyone was 1 year old. Soon they started living with Jushiro Ukitake and his wife Miyuki, but two hears later they died in a car accident. So Isane and Kiyone lives with Jasmine, and Yuki daughters of Jushiro and Miyuki.