I Accidentally Entered the World of Kings and Practiced the Devil's Way?

I accidentally entered the world of kings and became Zhuge Liang's cook? Wait, what is favorability? What is the magic system that can be unlocked by reaching 100? Zhang Yuan, who was originally a young man who died suddenly, was appreciated by Old Master, the martial arts master of Jixia Academy, for his good cooking skills and became his head chef. And because of this, he can start the systematic magic practice while the old master is giving lectures. Until one day, he received the power of the fallen demon from ancient times, his physique changed, and everything became different.