It is a SadangMun going into Sangdeoksa, and we also call it "Naesammun". As a 'Matbaejibung' with 3 units of front and 2 units of side, It was built at the same time period as Sangdeoksa. Because of stairs there are differences in heights, therefore frontal post was erected one step lower and the post shows a unique feature. Pattern is inverse-Taegeuk and painted colorfully (Dancheong).