Mu Jue Chen tries to get Qian Yu out of the jail by agreeing to marry her. Qian Yu uses the painting of engagement portraits to get Mu Jue Chen's memory back. Shen Ming Xiu goes to find Mu Jue Chen to get revenge. Mu Jue Chen thinks he is there to protect him. Wu Qing shows up and Mu Jue Chen thinks Qian Yu and the killer are plotting something with something poisonous. They make a pill to help him recover his memory, but Shen Ming Xiu replaces it with poison. (Source: jindreame at MyDramaList)