Oseon is a Korean restaurant in a stone-walled alley in Seonheul-ri, Jocheon-eup, Jeju, serving black pork duruchigi and black pork ganjang bulgogi. The Jeju black pork set meal arrives on a chaeban tray with ten side dishes made from Jeju and domestic ingredients. Only two or three cars fit in front of the restaurant, so parking on the main road means a 150 to 200 meter walk. When the restaurant is busy, staff are rushed and asking for anything extra feels like an imposition.