Are Sun Ce and Liu Bei enemies?

No, Liu Bei is an old friend of Sun Ce. He once made an ally with Sun Ce in Xuzhou. However, Liu Bei was later defeated by Cao Cao and fled to Jingzhou, where he formed an alliance with Liu Biao, a relative of Liu Bei and the governor of Jingzhou, who had a territorial dispute with Sun Ce. In order to protect Liu Biao's interests, Liu Bei sent generals such as Zhao Yun, Guan Yu and Zhang Fei to stay in Jiangxia to stop Sun Ce's attack. Although Sun Ce wanted to attack Liu Bei, he was reluctant to hurt his old age.