Menyasu is a Japanese ramen restaurant near Exit 5 of Hapjeong Station in Seoul that serves duck-based shoyu and shio ramen. Its signature tokusei duck soy sauce ramen comes with sous-vide chicken breast and pork chashu, and diners can adjust the flavor with sansho pepper or black pepper. Orders are placed at a kiosk, seating is at an open kitchen counter, and one person prepares the food, so waits can be long when a line forms. No vegetables or side dishes are served.