Soak the soybeans thoroughly and drain the water.
Blend the soaked soybeans, soy milk, olive oil, and a pinch of salt until smooth.
Put the ground soybean mixture into a pot and simmer over medium heat, stirring constantly.
Boil the noodles in boiling water and rinse them in cold water.
Place the cooked noodles in a bowl and pour the soy protein soup over them.
Finely chop pistachios and add them as a topping.
Drizzle a bit of olive oil and sprinkle with pepper to finish.