How about Silla Duty Free Shop?
This is the largest duty-free shop in Jeju Island, twice the size of Lotte Hotel. The brand is still relatively complete. South Korea's local skin care cosmetics area is crowded like a supermarket because the price is really cheap. It can be up to 6 times different from the domestic price. Attendant: Metropolitan Chinese. There are also bears selling TW here, but unfortunately there are not many styles.