Rinse the soybeans thoroughly and soak them for at least 8 hours.
Boil the soaked soybeans in boiling water for 5 minutes.
Rinse the boiled soybeans with cold water, then blend them thoroughly with soy milk in a blender.
Season with salt to taste.
Cook the thin wheat noodles and rinse them under cold water. Drain well.
Place the noodles in a bowl and pour the soy milk broth over them.
Finish with cucumber, sesame seeds, and other toppings as desired.