Liu Rengong was said to carefully serve both Li Keyong and Li Keyong's chief strategist Gai Yu,[REF] and through Gai, he made repeated suggestions to Li Keyong that Lulong could be conquered, and he asked for 10,000 men for the campaign.
Through the years that Liu served as Li Keyong's vassal, the officers that Li Keyong left at Lulong managed much of the affairs of the circuit.