I Achieve Immortality by Raising Demons

Thanks for asking. I’m in the Great Xia Dynasty, where five hundred years of peace have come to an end. Chaos is breaking out, and demons are running rampant. Fortunately, Gu Changsheng has a Demon-Suppressing Pagoda. He can slay demons and seal them inside his soul, where they train on autopilot! The power he gains from their training can be used to endlessly refine martial arts techniques. With the Demon-Suppressing Pagoda’s help, demon corpses can also be refined into magical treasures, pills, secret arts, and more. It’s all about putting waste to good use and practicing cultivation the green way! Cultivating on my own might be slow, but what if thousands upon thousands of demons helped me train? [Auto-training begins!] [The snake demon trains diligently, working hard for twelve hours. Power +4 days!] [The tiger demon works tirelessly without the slightest slack. Power +2,000 days!] [Demons × 10,000,000. After one day of auto-training, power +10,086 days!] [Your technique, Great Strength Bull Demon Fist, absorbs this power and reaches perfection in a single thought!] [On this day, the Demon Emperor displays his peerless talent and helps you improve your technique. Four Seasons Swordplay transforms into Sword Opens the Heavenly Gate.] [Sword Opens the Heavenly Gate is fully refined and reaches perfection in a single thought!] From then on, Gu Changsheng began his nine-to-five life of slaying demons and vanquishing devils. After Gu Changsheng killed a flood dragon with a single sword strike, ending its rampage as it surged toward the sea, the pocket watch in his arms beeped: “Beep, beep, beep!” It was time to clock out. He looked around. “It’s time for me to finish work. You can take care of the rest!” Without waiting for anyone to respond, he picked up the flood dragon’s corpse and flew away. [No saintly do-gooder! Decisive and ruthless! Passionate! Has principles! Knows what matters!]