Martial World

This is a world where everything is based on martial arts there are 3 of them: Kung Fu, Karate, Taekwondo. All three have 4 types: Earth, Water, Fire, Wind. They are all ranked by belts: White (Begginer), Yellow (New Student), Green (Experienced Begginer), Light Blue (High ranked Student), Blue (Experienced Student), Red (Low tier Master), Brown (Very Expirienced Student), Black (Master), Red-Black (Grand Master), Purple-Black (The Champion). They are all on 3 islands known as: Kung, Kara, Taekwa.