The Chungjangsa Shrine was built by royal order to commemorate the patriotic loyalty of Chungjangong General Nam I-heung, a symbol of loyalty during the mid-Joseon-Dynasty period. General Nam contributed greatly to suppressing Yi Gwal's Rebellion, and when the later Jin invasion of Joseon broke out during the reign of King Injo, he died a heroically in the fighting at Anju Fortress. Here in the shrine, the General Nam I-heung Cultural Festival is held every October to promote the general’s patriotic spirit, instill it in future generations and to introduce and share unique folk culture. Major events include a reenactment of General Nam I-heung's procession, traditional Korean mounted martial arts, Taekkyeon, a 24-class military martial arts demonstration, Chwita Dae symphony performance, and archery competitions. A zelkova tree over 600 years old stands guard at the entrance to the Chungjangsa Shrine, as if waiting to usher visitors in.

General Nam I-heung is hallowed in the shrine, and to the right of the shrine is the Jeongryeo-gak Monument, and an artifact exhibition hall built in 1979. There are also a tomb, an old manorial house, and a Shidobi shrine monument, as well as a memorial hall named Mochunggwan Hall, which means 'appreciating loyalty', that preserves about 500 relics such as a gonryongpo (king’s dragon robe), nokgu, Hopae (wooden ID tablet), etc., Outstanding, even amongst all these is a blood-stained rusted NokpiBangryeongpo (a padded top worn under armor) that makes you feel the urgency of the war in that period. The gonryongpo (king's dragon robe), which covered the general's crown, is such a rare dragon robe (dapho) that is the only one in Korea. The Mochunggwan Hall is not normally open to the public, and visits can only be made by group reservation. However, it is open to the public during the General Nam I-heung Cultural Festival. The ‘General Nam Yi-heung Cultural Festival’ is being reborn as an educational event to enhance the spirit of patriotic loyalty and offer a role model to Dangjin’s citizens.