Dining One Cheongnyangni is a buffet restaurant in Cheongnyangni, Seoul, serving sushi, rolls, seafood, meat, and Chinese dishes. Unlimited items include small-rice sushi and rolls, steamed clams, seafood stir-fried udon, guobaorou, and various ice creams. Meal time is 1 hour 30 minutes, entry requires the whole party to be present, and parking has taken over 30 minutes in some cases. During busy hours, queue management and parking are inconvenient.