Royal banquets under the reign of King Sunjo saw developments in the playacting stage, which exhibited characteristics unique to the transitionary period between Jeongjo and Gojong this period established the framework of the Joseon Dynasty’s playacting stage construction. Starting with the Jagyeongjeon-Hall banquet and continuing into the Year of the Golden Rat banquet, the next-day banquet by the Crown Prince demonstrates a renewed format, with the stage also changing accordingly. This change was substantiated by more assertive use of the Red Blind and gabjang. Previously, the Red Blind has been installed in the palace hall and around the royal courtyard, to form three sides, but as next-day banquets became more frequent under Sunjo, the Red Blind developed and came to be installed in accordance with the hierarchy within the royal family. In the Year of the Golden Rat banquet, the Red Blind was lifted and the throne of the crown prince was situated in the palace hall. In the banquet of the following year, however, the Red Blind was let down and the crown prince’s throne was placed outside, in palace court yard. This seems to have been a gesture to reorient the crown prince’s political standing and restore Sunjo’s sovereignty the following year. Hence, the installation of the Red Blind developed in accordance with the royal hierarchy and ranks under Sunjo’s reign. The gabjang provided the second layer of protection for the playacting stage. The hongjeongju gabjang surrounded the stage in multiple layers and served as a partition. The gabjang from the Year of the Golden Bull banquet, in particular, boasted a unique installation, where it dangled from both sides of the royal palace’s facade. Hongjeongju gabjang, lapis lazuli gabjang, red gabjang, and yellow curtains were installed in the stated order to reflect Sunjo’s 40th birthday as well as the 30-year anniversary of his coronation. The Red Blind and gabjang from Sunjo’s years were positioned in creative ways to reinstate the royal authority, and demonstrated many improvements from those of Jeongjo’s reign.

The most influential figure, both in political and academical terms, in the period of the latter half of and the entire run of King SunJo's and GwangHaeGoon's respective regimes, was the Head of the Northern Faction at the time, RaeAhm Jung In-Hong. He was renowned as the most prominent figure of the Northern Faction during GwangHaeGoon's regime for his distinctive records of political actions and services, which included his taking initiatives back in the ImJin war crisis, his social background in the GyungSang WooDo area, his legitimate status in the academic society granted by his being one of Joe, Sik's disciples, and his unwavering loyalty for the King GwangHaeGoon. But his radical, straightforward attitude and political perspectives forced the opposing political parties to stand against him. He also promoted the cherishing project for his mentor Joe, Sik in a great hurry, which was also against the general consensus and wishes of the scholars. Hence, he became the primary target of the leaders of the revolution which had InJo as the new King, and was executed in the aftermath eventually. There were indeed some redeeming qualities in his life. He firmly maintained his principles of being loyal to the country, to the King, and to his mentor, although he had probably gone too far when he criticised TwaeGwae Lee, Hwang, or when he excessively insisted the executions of the convicted traitors to the country, in the process. Yet it is true that there have been too much of negative sentimentality and too many criticisms against him, which was in part actually engineered by the opposing Western Faction politicians at the time, who generally named him a rogue traitor. What was true, however, was htat he had also demonstrated certain personal principles and outright determination to stick to that principles throughout his entire life, which was also a typical trait for the Chosun SanRim scholars. More rational and reasonable evaluations of the character would be recommendable in the futrue. Efforts like that might also be instrumental in defining the political and academical position the Northern Wing personnels deserved to occupy in the history of the Chosun dynasty.