D&D Department Jeju by Arario is a two-floor select shop near the Arario Museum in Tapdong, Jeju, selling Jeju specialty goods and household items. The first floor holds a restaurant and cafe that use seasonal Jeju ingredients, along with Jeju traditional liquor, honey, and makgeolli. On the second floor, the numbers inside circles on products show the production and sales period as a year, and the letter d on the building's outer wall is used as a photo spot. Small items and household goods are on the expensive side.