text: The Bunka-Bunsei cultural renaissance which started in 1804 lent momentum to fiction as a whole and art flourished until the renaissance concluded around 1830. Serialized long-form works became more prevalent, not just among historical novels. It was during this time that  continued publishing profitable and popular works. These ranged among scholarly essays and journals, though his most prevalent fiction remained the historical novel. He also embarked on creating his signature piece, . This work consisted of 106 volumes, making it one of the world's longest novels, and took 28 years to complete (1814–1842). Like most of his works,  focused on  themes, including loyalty and family honor, as well as Confucianism, and Buddhist philosophy. During its production,  would recede from public life and split from his contemporaries causing rumors to circulate that he had died. Unfortunately, while working on this voluminous work,  would experience the loss of his eyesight and the death of his wife and only son.
  Decline and death
  While writing,  also went about ensuring his children married well.  had married in 1815 and given birth to a son.  married  (1787-1837) in 1823 and her new husband took on the management of the family business under the name . , after a prolonged illness that kept him from his duties as a clan physician, married a young woman named  in 1827. She was later called  and would play a pivotal role in her father-in-law's later life.  bore three children; son  (1828-?), daughter  (1830-?) who was adopted by  and , and daughter  (1833-?). The final parts of the work were dictated to his daughter-in-law.