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The main point of Byeongsin Jeongsik, a royal financial reform carried out during the reign of King Jeongjo, is the question of whether the large-scale land and slaves owned by the members of the royal family who passed away were transferred to the king's large-scale private vault this is a process to examine how it is reflected in the palace's land documents and large-scale royal torture documents housed in Kyujanggak. The issue of moving large-scale land owned by the royal family, four generations after King Jeongjo's memorial service, was a long-term project that went through three stages: informing the reform (1776-1783), re-appointing the middle manager of the Naesu Temple and re-creating the related land ledger (1776-1783), and drafting the Naesu Temple design (1787). Jeongjo had the 4th generation of the ancestral rites move the land of most of the members of the royal family, except for the land of the small members of the royal family, to his personal safe, Naesusa. In 1788, Jeongjo established his own escort unit, Jang Yong-young, and tried to raise some of the necessary financial resources to the surplus of Naesusa, the inner act of the work. Jeongjo's royal fiscal reform focused on strengthening the finances of Nesusa and emphasized the ideology of being one with the royal family was the process of enhancing the public function of Nesusa, a royal financial organization, to actively utilize the resources of Nesusa in the construction of Jangyongyoung.
Sung-im Lee (Thu,) studied this question.