This work provides a benchmark for Kim Jeonghui’s running script as executed in his twenties. It reveals that Kim followed the elegant running script of the Chinese calligrapher Weng Fanggang (1733–1818) of the Qing Dynasty at the time. It relates a farewell poem that Kim composed as a heptasyllabic quatrain to congratulate Jo Yongjin as he left for Beijing in 1811 after being appointed as a military official accompanying his father Jo Yundae, who was the head of the dongjisa diplomatic mission to China. In the poem, Kim recommends that Jo pay a visit to Weng Fanggang.