After Becoming the Villain's Master in a Male Protagonist's World

'''New Novel "Back to the Beginning with My Rival" is now released~''' Yu Zhiling transmigrated into the villainous master in a xianxia novel, bound to a merit system. The male lead, Mo Zhu, due to his snake demon bloodline, was suppressed and tormented by the villainous master, leading him to turn dark. After killing the villain, he abandoned cultivation and fell into demonic ways, weakening his protagonist aura and causing the world to collapse. The system told her: [Your mission is to prevent the male lead from falling, help him cultivate diligently and ascend as soon as possible, and not neglect his training. Only then can his protagonist aura be strengthened, and the heavenly dao wil...