Dayu Master Class is reliable. Dayu Master Class was founded by Wang Jin in 2021 and is headquartered in Beijing. "Dayu" means "Master teaches people how to fish". It is a company that provides users with A company that provides original video course content by celebrity masters, covering nine major fields: literature, music, film and television, business, sports, art, food, life, and technology. The Dayu Master Class APP was launched at the end of 2021. The online video courses include Asia’s first sommelier Lu Yang teaching wine tasting, celebrity chef Da Dong teaching artistic cooking, Chinese contemporary poet Xi Chuan teaching poetry, and the highest honor in Asia’s climbing world, “Asia Zhou Peng, China’s first winner of the Piolet d’Or, teaches climbing. Courses such as China's new generation architect Ma Yansong teaches architectural design, international violin master Lu Siqing teaches violin performance and appreciation, China's number one e-sports player Li Xiaofeng Sky teaches e-sports, and the iconic figure in the Chinese cosmetics industry Mao Geping teaches makeup and other courses will also be launched soon.