Around the time, Xi Su (), a military officer from Yi Province (covering present-day Sichuan and Chongqing), brought along his men to defect to Sun Quan's side. Zhou Yu proposed to Sun Quan to let Lü Meng take charge of Xi Su's troops. However, Lü Meng praised Xi Su as a courageous person and declined to take over command of Xi Su's men. He believed it was disrespectful to do so because Xi Su had come a long way to join them. Sun Quan agreed with Lü Meng and returned Xi Su's troops to him.