Wash the cucumber thoroughly and slice it thinly into half-moon shapes.
Pat the tofu dry with a paper towel and cut it into bite-sized cubes.
In a bowl, combine the cucumber, tofu, and rice, mixing them well together.
Add gochujang, sesame oil, soy sauce, and other seasonings, then mix everything thoroughly.
Serve on a plate and sprinkle with sesame seeds to finish.