Lightning

A bus conductress Komori Kiyoko, the youngest daughter in a family of squabbling half-siblings. All the children are products of different fathers, though they share the same mother: a tragically weak-willed woman named Osei. The familial tension only increases when the husband of one daughter dies and leaves behind a substantial insurance policy, so Kiyoko abandons them to their quarrels and makes a go of it on her own, though she finds she can't leave her mother behind so easily.