Combine all the ingredients for the pork marinade in a medium bowl.
Cut the pork belly slices into 2-inch long pieces. Add the pork into the marinade. Stir well and set aside.
In a small saucepan, bring 2 cups water to a boil. Carefully place eggs into the boiling water. Let them cook for 5 minutes. Scoop out eggs and place in cold water.
Meanwhile, slice onion, shiitake mushrooms, and tofu; clean enoki mushrooms and chop off the ends; wash baby bok choy and cut them in half. Set all prepared ingredients aside.
In a medium saucepan, cook marinated pork belly over medium-high heat for about 2 minutes, stirring often.