[Machine Translation] One night, Seijiro, the young master of the pawn shop "Takamiya," brings home a man who almost threw himself to the ground and lets him stay with him. Despite the puzzlement of those around him, Seijiro did not reveal anything about the man's true identity, but simply asked him to call him "Mr. Iso. Soon, with the man in tow, he begins to visit people close to him and behave strangely. What is Seijiro's motive, the identity of Mr. Aso, and the contract they secretly made? A masterpiece of historical fiction.