Soak black soybeans (seoritae) overnight.
Boil the soaked black soybeans in boiling water, then drain.
Blanch the tofu noodles in boiling water and drain in a strainer.
Place the tofu noodles and boiled black soybeans in a bowl.
Add sesame oil, soy sauce, minced garlic, and ground sesame seeds, then mix well.
Serve in a bowl and top with chopped green onions and seasoned seaweed flakes.