Eomug or omug or whatever, is boiled fish paste and tastes like odeng. I think it is also originally from Japan. We can buy this food at the street vendor specially in pojang macha where koreans like to drink soju (korean alcohol). I love to eat omug but i've never tried to cook it at home.
Hubby bought this omug when he came home from work. I like it more when i eat in the street with the sticks and dip in soy sauce. In winter, we see many rolling stores selling this food. Students love this food in stick and the hajuma/ajassi gives free soup in paper cup which makes you warm in winter. I think that's more delicious than eating at home.