陳登
Lü Bu heeded Chen Gui's advice and rejected Yuan Shu's offer. He also arrested Yuan Shu's messenger, Han Yin (), and sent him as a prisoner to the imperial capital Xu, where Han Yin was publicly executed. After that, Chen Gui asked Lü Bu to send Chen Deng as his representative to meet Cao Cao, but Lü Bu refused. However, after the Han central government sent an emissary to grant Lü Bu the appointment of General of the Left (), Lü Bu was so happy that he sent Chen Deng as his representative to Xu to thank Cao Cao and the Han imperial court. In Xu, Chen Deng urged Cao Cao to eliminate Lü Bu and agreed to serve as a mole for Cao Cao in Xu Province. Cao Cao also promoted Chen Deng to the position of Administrator () of Guangling Commandery (廣陵郡; around present-day Huai'an, Jiangsu), and increased Chen Gui's salary by 2,000 "dan" of grain.