Soak the seaweed in water and rinse thoroughly.
Cut the kimchi into bite-sized pieces.
Lightly sauté the tuna in a pan.
Add the kimchi and stir-fry together.
Add the soaked seaweed and stir-fry once again.
Add the oatmeal and water, then bring to a boil.
When the mixture becomes soft and porridge-like, turn off the heat.