After I Transmigrated, I Bound Myself to a Demon God Development System

Yi Yao accidentally transmigrates to a cultivation world and binds herself to a System. The System tells her she is the world's savior. Only after she upgrades the System to its maximum level will she learn how to get home. So she trains diligently, completes her missions, and saves the world along the way. Each time she gains a level, the System unlocks a new talent. Physical enhancements, spatial rewards, marketplace trading... At last, she upgrades the System to the maximum level. Only then does she discover that the System's full name is the Demon God Development System. The way home is to become a god.