Nattō (なっとう or 納豆?) is a traditional Japanese food.
This is "Black Natto(黒納豆)". It kind of Natto.
( Not"Black butler"!!)
It is made from black soybeans.We usually eat it with rice.
In generally, we put a little bit of Karashi on Natto.But when we eat Black Natto, we use Wasabi..
This is also Natto. It is more popular than black one.
Maybe you know it as a Japanese Natto.