Wing Chun is a concept-based martial art, a form of Southern Chinese Kung fu, and a close-quarters system of self-defence. It is a martial arts style characterized by its focus on close-quarters hand-to-hand combat, rapid-fire punches, and straightforward efficiency. It has a philosophy that emphasizes capturing and sticking to an opponent's centerline. This is accomplished using simultaneous attack and defense, tactile sensitivity, and using an opponent's force against them.