This recipe combines the rich umami flavor of soy sauce with the smoky char of grilled fish. Start by marinating the fish in a mixture of soy sauce, garlic, ginger, and a touch of sugar. Let it sit for at least 30 minutes to allow the flavors to penetrate the fish. Then, grill the fish until it's cooked through and has a beautiful caramelized exterior. Serve it with a side of steamed rice and some stir-fried vegetables for a complete meal.