Dasibersi is a Korean restaurant in Sehwa, Jeju, across from the Sehwa Oil Market, serving hairtail braised with radish and potato in a mildly spicy, not-too-sweet sauce, along with aged kimchi braised mackerel. It sits directly in front of the Sehwa sea, and the meal comes with side dishes such as pickled scallion kimchi, potato salad, and stir-fried anchovies. When the restaurant fills up, there can be a wait.