The National Museum of Korea finds itself at the center of attention as four hunters rise to protect the Honmoon. Jae Seok stands as the gatekeeper, Haha leads the training, Woo Jae brings sharp strategy, and Kyeong Hwan, whose hometown is the Great Admiral's, joins the frontline. Each hunter carries the weight of past scars that shaped their resolve. Just then, a warning signal approaches, threatening everything they guard. The fate of both the Hunters and the spirit gate hangs in the balance.