Trim one end of each cucumber and cut into angled thin slices to form oval shapes to your preferred thickness.
Place the cucumber slices into a bowl and sprinkle with salt, then toss to coat evenly.
Cover and chill the salted cucumbers in the refrigerator for at least 20 minutes to release excess moisture.
After chilling, drain the liquid and rinse cucumbers briefly under cold water for about 10 seconds; drain well.
Return the cucumbers to the bowl and stir in sesame oil, light soy sauce, sugar, rice vinegar, chili oil, sesame seeds, and minced garlic if using.
Mix all the ingredients thoroughly until the cucumbers are well coated with the dressing.
Serve the salad immediately for the best fresh flavor and crunch. Enjoy!