Ace Burger sits at the entrance of the Jjukkumi Alley in Yongdu-dong, a four-minute walk from Jegidong Station Exit 6. It serves handmade burgers with smashed patties, seared crisp on the outside and kept moist inside to hold in the juices and char. Takeout is packed neatly, and takeout and delivery orders are available. The dining room has a clean, hip interior and is used as a date spot.