Wing Chun | is an effective branch of Kung Fu (Martial Arts) that focuses on close range combat and the center-line theory. Ng Mui, the legendary buddess monk, realized that most of the techniques in the Shaolin temple were ineffective for small women to use against large sized men. 

In a nutshell, it’s a mixture of different martial arts that were merged into a simplistic fighting style. Legend has it that buddess monk, Ng Mui, along with 4 other shaolin masters created a fighting technique based on various animal forms. Eventually these masters simplified it to the white crane and snake style.

After the destruction of Shaolin temple by the Qing dynasty, Ng Mui fled to the White Crane mountains where she befriended a teenage girl by the name of Yim Wing Chun. 
As the rest of the story goes, Wing Chun was pressured in marriage by a local warload and in a year with the help of Ng Mui, she was able to defeat the local bully.

Many variations of the legend of Ng Mui exist. Some propose it was developed from Ng Mui’s observation of a snake and crane fight each other. Others hold that Wing Chun was the merging of the best kung fu techniques of the Five Shaolin masters prior to the burning of the temple by the Qing dynasty.