Iyo Iyo Yonggang 4-hojeom is a Japanese restaurant in Yonggang-dong, Mapo-gu, Seoul, serving sushi and cooked dishes on the third floor of a building directly in front of a public parking lot. The lunch omakase runs from hoe and sushi through soup, udon, and dessert, and includes blue-backed fish such as herring, Spanish mackerel, and mackerel. It is open for Sunday lunch, and visitors come after making a reservation. The chef explains each ingredient and how to eat it one by one, and diners can ask for adjustments if the seasoning does not suit them, though the pace of the meal is fast and leaves a rushed feeling.