It contains the history of Yeonpyeongdo Island where so many yellow croakers were caught that a seasonal yellow croaker market was held earlier. In the past, many fishermen made such a handsome profit by catching yellow croakers that it is said that even dogs held money in their mouths. It is said that as many as 300 ships flocked to the sea of Yeonpyeong from all around the nation in order to catch yellow croakers in the latter era of the Joseon Dynasty. Visitors can take a look at some materials related to Pungeoje (a ritual for bountiful fish) held in Yeonpyeongdo Island and General Im Gyeong-eop.