I, the Demon Cultivator, Paint the Ten Thousand Souls Banner in My Childhood

"Warning! The host's malicious intent has been detected! 9999999+ Merits will be deducted! The karma is overwhelming! You are about to fall into the devil..." The demon lord took out his ears and slapped the freshly extracted soul into the human soul flag with his backhand: "Shut up, noisy inner demon!" Reborn in the modern city, possessing the body of an "indigenous" person with terminal cancer in Tokyo? Language barrier? Thin spiritual energy? How could the peerless Demon Lord be defeated by this difficulty! Killing people to refine their souls and restore their cultivation is the right way! Is the inner demon (system) calling the police in your head every day to deduct merit? Hey, buckle it, buckle it, so what if you lose hundreds of billions of merit? How could I care? One hundred thousand evil souls entered the banner, and the blood refining formation was opened! The demon lord is so proud that he waits for the evil treasure to be born However, the golden light is brilliant! Lucky clouds are blooming! The merits of humanity pour in like a sea! Looking at the holy, bright and warm "Fanner of Merit and All Souls" in his hand, and then looking at the power of merit surging in his body, the Demon Lord was stunned: "Where is my Soul-Eating Banner? Can this thing... Can kill the enemy?" System: [Core logic error... ERROR... Killing = merit? …Host…you…are poisonous…] The national destiny game is coming? Choose me? It must be an enemy trap! The golden banner was displayed: "No matter what monsters you are, come in and add merit to me... Uh...!" Copy collapse ×3! The game disappears! The whole world is shocked! The demon king stands on the top of the city, his meritorious golden light shining on the earth, just like a living saint. Inner OS: "This body of merit... How can I explain it to my brothers in the devil's path when I go back???" This is an outrageous (and exciting) story about a peerless devil who uses the most brutal method to bring out the most brilliant merits and destroys the system and the world!