Sea urchin, also known as "Dan" and "Sea Chestnut" in Japan, is one of the three most delicious foods in Japan and also known as "soft gold". The edible part of sea urchin is rich in vitamins and contains extremely high concentration of umami amino acids, so it can make us feel indescribable delicious. The intense sweetness and the intense bombing of taste buds make it hard to hide the love for it.
As a big producer of sea urchins, Japan produces them in Hokkaido, Hokuriku, Kyushu and Northeast China, and the types, colors and tastes of sea urchins are different.