Cod Ovum --- Spicy Cod roe ( seasoned with salt, chili pepper etc. ) is great food.
Originally from Korea, I believe.
In Japan, the origin is Fukuoka prefecture.... a prefecture located in Kyushu ( Southern ) island.
Lately, I ofen make this rice bowl. No cooking.
Just put some Mentaiko ( Karashi Mentaiko is the correct name ) , Chopped Shiso ( Japanese basil ) , fresh egg. No soy sauce needed, since mentaiko is already salty enough.
Just mix all of them and eat ! mmmmm.... Yum ! Some day's breakfast.