"The Night Before" Lin Xi was not killed by the explosion, Su Nan saved him.
As soon as Zhou Yingqun brought his people there, he heard gunshots. When he broke in and saw that Jiang Wei was dead, Lin Xi had pain and tears on his face. A bomb fell, blowing the building they were in to pieces. Lin Xi was not dead. He was crushed under the rubble. It was Su Nan who stayed alive and dug out the dying Lin Xi from the rubble. Only then did he survive. After half a year of recuperation, Lin Xi recovered from his illness, and the organization sent him to Shanghai to perform a mission, with Su Nan cooperating with his actions. While in Jinzhou, Lin Xi was very close to being exposed, so Minister Cao told him to be careful this time. Su Nan blamed herself for failing to rescue Zhou Boyang and others.