Ji'an Monument Keeper

At the ancient Goguryeo monument at the foot of Wandu Mountain in Ji'an, Lao Lintou, who had guarded it all his life, suddenly disappeared mysteriously. His grandson Lin Yu returned to his hometown, only to find that the lines on the stone tablet exactly overlapped with the notes left by his grandfather. As he gradually uncovers the secrets in the inscriptions, the past events of the Anti-Japanese War, the secrets of the royal city, and the shadow of the underground royal tombs are sweeping towards him... What the monument keepers are guarding is not the monument, but the truth that has been buried by the years.