Luo Zhou was originally the most inconspicuous clown magician in the royal capital. He made a living at noble banquets by performing tricks and venomous tongue-in-cheek. He is naturally feminine and handsome, but his words are subtle and subtle, and he can always make people laugh with a joke. Until he picked up a "Mask of the God of Joy" in an abandoned theater. After putting it on, he could steal other people's emotions and use them for his own purposes - sadness as a shield, joy as a blade, and anger as fire. When the church burned down the slum where he lived in the name of "purifying heretics," Luo Zhou put on a mask and walked into the sea of fire with a smile. When he came out again, his eyes had no warmth. He no longer makes fun of the world, but only steals the despair of his enemies and makes them suffocate in laughter. The humorous magician in the past has become a tyrant in the shadows, and the leader of the Holy Knights who once hunted him discovered that everything this madman did was actually fulfilling the ancient prophecy of "fighting evil with evil" in the oracle. This is where the battle of ideas begins: when the world itself is rotten, and burning sin with extreme evil, is it redemption or a deeper depravity?