Meanwhile, rinse the glass noodles and soak in cold water for five minutes. After five minutes, drain and set aside. After the 15 minutes of simmering have elapsed, add the sesame oil, white pepper, and salt to taste. Mix everything well. Add the glass noodles on top of the daikon, cover, and simmer for another three minutes. Uncover and add in the green parts of the scallions. Give everything a quick stir to combine and serve.