Julienne the cucumber and carrot into long strips.
Blanch the fish cake in boiling water to remove excess oil.
Slice the fish cake thinly, then stir-fry in a pan with gochujang, soy sauce, sugar, and red pepper powder for seasoning.
Evenly spread rice on top of the seaweed sheet, then add cucumber, carrot, and the seasoned fish cake.
Roll the gimbap tightly and cut into bite-sized pieces.