Two young girls travel through a desolate landscape in search of food, water, and fuel for their precious Kettenkrad motorbike. Although the world they wander through is a lonely one, Chito and Yuuri find happiness in the little things they encounter on their journey: a forgotten supply of military rations, a hot bath thanks to a leaky pipe in an abandoned power plant, or the discovery of a lone autonomous robot protectively guarding a solitary fish. Even if human civilization is dead, these two can always find something to live for.