Yiqie Cong Wo Chengwei Luding Kaishi

Ye Yan has been abused as a cultivation body for a thousand incarnations. In this life, he was suppose to be the prime disciple of the leader of the Yunyan Sect, but it turned out they were just keeping him as a cultivation tool. Just as he was about to be sacrificed for cultivation, he awakened a System, and was given a newbie pack that contained a magical potion to massively boost his cultivation, a pill to help him form an immortal body, and directly raised his spiritual power by two stages. The System announced his first mission — escape from this sect immediately.

(Source: Kuaikan, translated)