Kim Deokhu-ui Gopchangjo Hongdae 4hojeom is a gopchang restaurant in Hongdae that serves all-you-can-eat refills. Refills cover daechang, beef tripe, and heart, and rice and stew come with the meal. During the all-you-can-eat service, you have to keep ordering more as you eat, and refills take time to arrive. There is no ventilation system, so clothes pick up the smell after the meal.