As for the preparation of the fish, please refer to a recipe that prepares mejina for sashimi. Once you've removed the skin, cut it into bite-sized pieces and season with salt and pepper. (If you'd prefer, you can leave the skin on.)
All you have to do is coat them with batter and fry them at 180℃!
Story Behind this Recipe
Someone made this for me at a fisherman's hotel and it was delicious! That's how I decided to make it myself.
I hate finding bones in my mouth when I eat!! I tend to use meat prepared for sashimi use. However, while I think that anything is fine, there isn't really any trick to this recipe.
I have never seen mejina sold in big cities, but if by some chance you do find it, please try making this! It's so delicious!