They all came from the mud. The people of the Southern Village fulfill their duty to the field of mud at the village's center, helping unearth people just like someone once unearthed them. But Mukisa is not mud-born, and for that she is scorned. Her sister has fallen under the mud, and the tension is rising between neighboring villages. When a threat is discovered under the mud, Mukisa must rally the villagers to defend themselves and save her sister -- and the village.