The silent wait was long and tense. After Sun Zhuzhu signed, she sat down on the ground. Song Zhiwei picked her up and put her on the wooden bench in the corridor. Soon a nurse came in a hurry.

"Sun Lihang's family, the hospital's blood bank is running out of blood and we need to donate blood. Which of you is type AB?"

Sun Zhuzhu opened her eyes in confusion. It took her a while to digest what she was saying before she understood what she was talking about. After ...