Counselor Mito and his companions departed from Mito to see Kikutaro, a young lord of the shogun family, who became the new lord of Shirataka castle with an income of three hundred thousand koku. As they approach Shirataka's domain, a disturbing adventure begins. Soon, the advisor Mito and his companions reveal a conspiracy whose purpose was to capture the Shirataka castle and engage in a battle with the villains.