Cook the rice the day before, spread on a sheet pan, and refrigerate overnight.
Separate the rice grains by gently rubbing with the palms of your hands, then chop rice coarsely, this is the domyoji.
Make 3 cuts across inner curve of shrimp, 1/2-inch apart. (This prevents shrimp from curling when cooked.) Coat the shrimp in flour and shake off any excess.
Dip shrimp into the egg whites and then into the coarse rice. (Be sure that the rice adheres firmly.)
In a wok, heat oil over moderate heat to 350 degrees F. Deep-fry shrimp until golden. Drain well on absorbent paper and place on a sheet pan-well spread out-into a preheated 450 degree F oven for 3 to 4 minutes to finish cooking process. Serve immediately.
Add green peppers to the wok and fry until tender. Remove and drain well.
To serve, arrange 4 shrimp on green pepper strips on a preheated plate and sprinkle with ajishio seasoning, garnish with a lemon slice, and serve with sweet and sour sauce.