Professor Yang was the head of the family, and he loved his younger sister very much. She was born into a poor family. With her own efforts, she had achieved her current status step by step. When she was young, the family was too poor to support two children to study. It was her younger sister who took the initiative to give up the opportunity to study. It could be said that everything Professor Yang had now was given by her younger sister.
Later, she wanted to graduate, but her family was completely broke. Helplessly, she had to marry her sister to Gui Yong. With her sister's betrothal gift money, Professor Yang finished the doctor's degree.
She always felt sorry for her sister, but she couldn't make up for her sister's death, so she took good care of Gui Yong. Samantha let Gui Yo
