This product is a bento box that includes "sukiyaki", rice, a cup and hot spring eggs. You can eat beef shoulder loin with a special sauce and "sukiyaki's standard ingredients" while dipping it in an egg.
The special sauce has different flavors in the east and west, and the sauce in the Hokkaido-Tokai and Shizuoka regions is characterized by its rich flavor made from kelp. In addition, Hokuriku, Kinki-Okinawa are said to use sauces that are characterized by their refreshing sweetness.