Press the extra firm tofu for 15 minutes to remove excess moisture, then cut into 1-inch cubes and season with sea salt and black pepper.
In a small bowl, whisk together the gochujang, tamari, rice vinegar, minced garlic, and grated fresh ginger to create the glaze.
Heat a non-stick skillet over medium-high heat with the sesame oil and sear the tofu cubes until they are golden and crispy on all sides.
Pour the gochujang glaze over the tofu in the skillet, tossing quickly for 1-2 minutes until the sauce thickens and coats the tofu evenly.
In a separate pan or the same skillet after removing the tofu, lightly sauté the cooked brown rice, chopped kimchi, and shelled edamame until heated through.
Transfer the kimchi rice and edamame mixture to a bowl, top with the glazed tofu, and garnish with sliced scallions before serving.