Thinly slice the cucumber. You can do it either by hand or using a food processor. Rub the slices with salt and drain for 5 minutes in a colander. Rinse under cold running water and squeeze them tightly to remove water. Set aside.
In a small bowl, mix the sugar, soy sauce, and rice vinegar until the sugar dissolves.
Add the dressing to the cucumber slices, sprinkle with sesame seeds and mix well. Enjoy!
