Cut the cheongpomuk (mung bean jelly) into bite-sized pieces.
Julienne the cucumber and carrot.
Place the cheongpomuk, cucumber, and carrot in a bowl.
Mix soy sauce, vinegar, sugar, chili powder, minced garlic, and sesame oil to make the seasoning sauce.
Add the sauce to the ingredients and mix evenly.
Finish by sprinkling sesame seeds.