Fry the onion, add the water and leave it on a medium fire. Mix and add the green onion, chicken breast, carrot, celery and chicken flavor. Stir it and leave it for 20 minutes. Wash the rice and add it to the mixture, leave it for another 30 minutes. Finally, add black pepper, pepper and salt, leave it for another 20 minutes on fire. Now, Rice Soup with Chicken Breast is ready to be served. It can be decorated with Parsley.