Dragon Ball: After the End
Centuries after Earth fell, the survivors' descendants are still only barely coming to their feet. On their new, hidden homeworld of Garenhuld, Kakara, the young heir to one of the two royal houses, must find her place as her society approaches a period of renewed turmoil.
Uzushiogakure was the strongest minor village out there. People from every village feared the Uzumaki, feared their sealsmasters, and feared their suiton. So it was inevitable, in a way, when two of the major shinobi villages banded together with one goal: leave Uzushio a pile of rubble. In a few days, the Uzumaki went from the leaders of a feared shinobi village, to a dying bloodline. Yet the Uzumaki survived. They found their way to every corner of the Elemental Nations, by good fortune...
In the midst of a great depression and a cold war, you are simply a homeless drifter hoping to finally settle down somewhere. A simple slice-of-life story set in a rural mountain town.
The heroine has failed. Woe is she who does not remember the world became manure nor does she remember her own name or anything at all. Shall shoujo shenanigans commence?