What is Du Linyan's level in Kong Xuan?

Not bad. Du, male, Han nationality, born in 1974, Han nationality, was born in a Feng Shui family. His father is Master Du, and he likes and studies Feng Shui since he was a child. He is the seventh generation descendant of Jiang Gong Feng Shui (Daxuankong Department), engaged in Feng Shui and Feng Shui teaching all the year round, has written a series of books on Daxuankong Feng Shui, and is the head of Nanyang Daxuankong Culture Communication Co., Ltd.