Yao became a King for 70years and got Shun, retired after another 20years, ordered Shun to govern the country, recommanded to the Heaven. Yao died after 28years since his retiring. People were sad as if died a parent. To show their mourning, there were no music in the country. With knowing his son Danzhu was not fit for the governing, Yao passed his King's position to Shun. Yao thought, if Shun took the position, all people would get benefit from him except Danzhu; if Danzhu took the position, all people would be harmed by him except Danzhu. Yan felt that he should harm all people but do good to only one man, so finaly passed the position to Shun. After Yao's death and 3years mourning period passed, Shun passed the position to Danzhu at the south bank of River South. All leuds worshipped Shun instead of Danzhu, lawsuit were brought to Shun instead of Danzhu, people praised Shun instead of Danzhu. Shun said "it's the will from Heaven", so soom took the King's position. That was King Shun.