Wash the cucumber thoroughly and slice it into thin strips.
Remove excess moisture from the tofu with a paper towel, then cut into bite-sized pieces.
Season the tofu with salt and pepper.
Heat a little cooking oil in a pan and grill the tofu until golden brown.
Place the cucumber and tofu in a bowl, add gochujang, soy sauce, sugar, vinegar, and sesame oil, then mix well.
Sprinkle sesame seeds on top to finish.