Yu Hai, 1942, 18 was born in Yantai, Shandong Province in July. China, an outstanding martial artist, can be said to be a martial arts elder who has deep roots with Jason Wu. Yu Hai is not a professional actor, but a master of various schools of mantis boxing. Master Yu Hai has been active in the front line of Wushu education for decades, engaged in Wushu teaching, research and excavation of long-lost Wushu heritage and other specific work. It painstakingly grinds the essence of various martial arts schools, absorbs and integrates, and constantly brings forth the old and brings forth the new, reaching the peak. The research and practice of China's traditional boxing is known as the "Wushu Dictionary". His research and development of mantis boxing has made great contributions to the cause of Wushu in China and established his authoritative position in the field of Wushu at home and abroad. He is admired by many martial arts lovers at home and abroad for his superb martial arts and noble martial arts morality.