Marinate beef with ground pepper and salt for 10 minutes.

Heat oil in a pan, stir fry beef until it changes color. Set aside.

In the same pan, sauté garlic until aromatic.

Add radish strips and stir for 1 minute.

Pour in water, soy sauce, and add star anise.

Simmer until radish is slightly soft.

Return beef to the pan, boil for 1 minute, then serve.