Sprinkle belly fish with salt and pepper. Fry slightly then set aside.

Reduce the oil used in frying., using the same oil saute' garlic and onion. Add the cooked belly fish. Put the liquid ingredients such as oyster sauce, mirin(optional), seasoning, water. Add sugar and pepper to taste.

Simmer for about 5 to 10 mins. Dissolve cornstarch in the water then pour it on the simmer fish. Stir a bit until sauce thicken then add some greens for garnishing. Serve with steam rice.