Marinate duck breast with Soy Sauce, Sesame Oil, Pepper, Oyster Sauce, Star Anise for about 2 hours. Roast duck until medium stage. Continue grillin the breast for the sauce, in a Wok, stir fry with Teryaki Sauce. Serve on a plate the Pak Cai, cut the breast & put on top, and drizzle some sauce. Serve with Sushi Rice.