In his previous life, Mo Chen was a top expert in the world of immortality, but due to the outbreak of inner demons, he accidentally killed his most beloved disciple Su Qingci, and died tragically in endless regret and pain. Once reborn, Mo Chen returned to the time when he accepted Su Qingci as his disciple, vowing to protect him and pamper him throughout his life. He changed his forbearance in the previous life and completely exploded with his mad criticism attribute. He was ruthless in killing externally and cleaning out all those who might harm Su Qingci. Internally, he protected and indulged Su Qingci in every possible way. He made plans in advance to resolve the crisis of inner demons, taught him the most powerful skills, and found opportunities for him to defy the odds. After Su Qingci was reborn, he also devoted himself to protecting his master and helping him suppress his inner demons. The two of them joined hands to fight back, clean up the treacherous people in the world of immortality, and resolve the war between immortals and demons. Mo Chen used his lifelong love to make up for the regrets of his previous life. In the end, master and disciple stayed together and ascended to the throne of immortality together.