Nakjukjang refers to a person who has the ability or skill to engrave decorative paintings or writings while burning a fire-burning indu in bamboo.

It was from ancient China that porridge was used in objects, and it was a very rare technique in Korea, but it was passed down to Japanese colonial era by Park Chang-gyu during the reign of King Sunjo of the Joseon Dynasty (1800-1834).

Nakjuk requires work experience and speed because it needs to be drawn at a temperature and finished with a pattern or writing before the pharynx cools down. It is mainly used for arrowheads, acupuncture needles, calves, folding screens, tobacco poles, fans, and bamboo pencil cases.

Nakjuk is most commonly used in thick bamboo (hapjukseon) flesh, which is used at the beginning and end of folding fans. Butterfly designs are often used in Hapjukseon, but bat patterns are sometimes seen.

☆Nakjuk is bamboo crafts that draws scribbling, painting, and patterns on the bamboo surface with fire-burning irons. Along with other bamboo crafts, it has been prevalent in Damyang since ancient times and has been handed down until recently.

Guk Yangmun (from 1914.2 to 71998.11.30,) was designated in January 1987 following Yi Dong-yeon (1969, November 29, Designated), the holder of the Important Intangible Cultural Property No.31. After Guk Yang-mun passed away, Kim Gi-chan (2000.7.22, Songgwang-myeon, Suncheon-si) was recognized as the holder, but he is working in an area far from Damyang.

Among the bamboo crafts that have developed into a divisional form, Nakjuk is a process that improves the quality of goods by adding decorative features, and it is also necessary to newly designate them in Damyang area in order to adhere to the principle of preserving cultural assets, called "preservation in the original form."

Yi Sin-eop runs a workshop, and is dedicated to the preservation and transmission of traditional Nakjuk techniques.