As you walk into this red building, you’re greeted by granny Na Jeongsun. Her restaurant is regarded as the beginning of Yongdu-dong’s jjukkumi alley. When she started selling stir-fried jjukkumi 35 years ago, this neighborhood didn’t have its current cluster of jjukkumi restaurants. Once you sit down, you’ll be served red, marinated jjukkumi and mushrooms without even having to order. Their one and only dish is stir-fried jjukkumi, and they don’t even have a menu. Described as containing nothing special but good ingredients, the restaurant’s spicy stir-fried jjukkumi is addictive. You can enjoy it with sesame leaves and kelp noodles mixed with mayo, which will help ease the fire of this dish.