He was a Silhak scholar who studied practical matters in the Joseon Dynasty. Gyeonggi-do designated it as the Tangible Property No 3 in 1976. There are a gravestone, a stone putting the incese burner on in front of the grave, a stone table in the mist. The statues shaped the civil official are standing on the both side. He prosecuted the economic and the social reformations for the public.