Shinnojo, a low level samurai, lives with his pretty, dutiful and loyal wife Kayo. He has come to find his position in a castle as a food-taster for a feudal lord to be boring and pointless, and talks about opening a kendo school open to boys of all castes where he can teach the use of the sword. Before he can act on his dream he becomes ill with a fever after tasting some sashimi made from shell fish, but an investigation reveals that the poisoning was not due to a human conspiracy, but a poor choice of food out of season. After three days he awakes but finds that the toxin from the food has blinded him. Kayo is summoned by Shinnojo's family to explain how the couple will survive. His uncle laments that he no longer knows anybody with influence in the castle, and asks Kayo if she knows of anybody. She relates how Toya Shimada, the chief duty officer in the castle and a samurai of high rank, offered to help and they tell her to act upon his offer of assistance. A message from the ...