Yao Xiaoyun is Yao Xinxin's biological sister! How can she get down to it!?

Four years ago, Yao Xiaoyun lay breathlessly in his arms and left the world without any care for his sorrow and sadness.

Yao Xiaoyun and Yao Xinxin have congenital heart disease since childhood. The Yao family has never given up looking for the best doctor for them for many years. Emperor Tian did not bear his heart. With the perseverance of the Yao family, he finally found hope in the United States.

Yao Xiaoyun's condition is not serious. After more than a year's recuperation, the incidence is getting lower and lower, and his pale face has...