When Yu was 30 years old, he met Lady Tushan of the Tu Shan clan and fell in love at first sight with her. They eventually became married. With Tushan Tribe being a powerful matriarchal Tribe in the Dongyi region, he moved to his wife's hometown as a live-in son-in-law.
Even though he was in a matriarchal society, Yu received the great support of the Dongyi region and it laid a foundation for his later achievements. At the moment, he and his wife were still on their honeymoon and enjoying themselves. Emperor Shun became increasingly reassured when he received reports about Yu's new life.
But there was still something that confused Emperor Shun and he called in a meeting with his ministers. "I have considered your recommendation that Yu be appointed as the officer responsible for regulating the rivers and watercourses, and I find it workable. But I have one question. I have never heard that Gun has any descendants. What's the reason for that?"