People chop the seven vegetables with a kitchen knives on a cutting boards the night before the festive day while singing an accompanying song, and on the morning of the festive day they add the chopped vegetables in the rice porridge.
七種は、前日の夜に俎に乗せて囃し歌を歌いながら包丁で叩き、当日の朝に粥に入れる。