Clean the bean sprouts and octopus thoroughly.
Pour water into a pot and blanch the bean sprouts.
Blanch the octopus in boiling water and cut it into bite-sized pieces.
Add sesame oil to a pot and stir-fry the kimchi.
When the kimchi becomes translucent, add the bean sprouts, octopus, and oatmeal, and stir-fry together.
Pour in 400ml of water and bring to a simmer over medium heat.
Stir occasionally and cook until the porridge thickens.
Season with salt and pepper to taste, and serve.