| (Husband) |
Teruharu Kosukegawa (son)
She is the unnamed mother to Teruharu Kosukegawa, one of the protagonist in the series.
In her first apperance she tells Motoko Gettou that her son has died, which is untrue. She then goes on about how her son doesn't wants do things they did together when he was a child anymore. She takes a liking to Ginga and suggested to Hino, to take Kosukegawa when Hino was going to take Ginga away. To her joy Ginga turned out to be a long lost relative, meaning she could stay and go to school in Japan.
She respects her sons choice to go on a journey, giving him his grandfather's old tattered travel clothes, which he gives back.