Mythic Three Kingdoms: I Cultivate Immortality in the Three Kingdoms

I transmigrated into the camp of Cao Cao in Xuzhou in 193, as a lowly cook. The moment I woke up, I ran into demonic energy corrupting beasts, and my extraordinary spiritual sense warned me of the demonic cultivators' plot behind a massacre. The barrier around the Nine Provinces is cracking, ancient seals are weakening, and even the Imperial Jade Seal hides secrets of dragon energy? From cultivating Qi just to stay alive to tracking demons and protecting the barrier, the more I cultivate, the more anxious I get. Just how many things in this Three Kingdoms world are waiting to devour all under heaven?