Ji Yuan traveled to the world of magic and swords and ran an inconspicuous tavern in a border town. On the surface, he is a harmless neighbor with a warm smile. He is good at soothing the hearts of travelers with the most healing dishes. However, only he himself knows that the dark side of "turning into a demon with just one thought" lurks deep in his soul. Whenever he encounters betrayal or touches the bottom line, the demonic nature in his body will awaken, showing a terrifying coldness and power.
One day, his ex-girlfriend on Earth, Su Qian, also traveled through time and became a high-ranking saint in the empire, bringing with her her new love, a hypocritical saint. Su Qian disliked Ji Yuan's mediocrity and humiliated him in public, trying to cut off the past. This time, Ji Yuan did not choose to forgive. He closed the door of the tavern with a smile. Behind the door, those warm eyes instantly turned into cold vertical pupils. Since people's hearts cannot be cured, then use demonic thoughts to cleanse the world.
