The following afternoon, Shigematsu went to inspect the hatchery ponds. The aiko were coming along well, and in a shallow corner of the larger pond some water weed was growing. Shokichi had probably planted it there; he must have got it from the Benten pond at Shiroyama. Its oval, shiny green leaves dotted the surface of the water, and from their midst rose a slender stalk on which a small, dark purple flower was in bloom.
Shigematsu looked up. “If a rainbow appears over those hills now, a miracle will happen,” he prophesied to himself. “Let a rainbow appear – not a white one, but one of many hues – and Yasuko will be cured.”
Black Rain, chapter 20