Wash the radish thoroughly, peel it, and slice it thinly.
Place the radish in a bowl, sprinkle with salt, and let it sit for 10 minutes to marinate.
Squeeze out the moisture from the marinated radish.
Add minced garlic, red pepper powder, sugar, vinegar, and fish sauce to the bowl and mix well.
Add the radish to the seasoning mixture, then mix in green onions and sesame seeds.