Songdang Haejangguk is a hangover soup restaurant in Songdang, Jeju, serving beef haejangguk, seonji haejangguk, and naejangtang. The beef haejangguk has a relatively clear, spicy broth, while the naejangtang uses a richer broth with more meat and is eaten with minced garlic added. Meals are recorded from 8 a.m., food comes out quickly, and there is a separate parking lot across the street. Lunch customers are mainly people who work in the neighborhood and local residents.