You can enjoy the taste of the season with rice balls and fast-cooked rice. Add 200 ml of water and an appropriate amount of soy sauce and cook rice in a "fast cooking" manner. It's simple, but it turns out to be authentic cooked rice. You can easily cook it in the microwave in about 10 minutes. It contains black maitake mushrooms from Niigata Prefecture, which is rich in flavor and goes well with Western style.