In order to prove his innocence and uncover the truth about his amnesia, Lu Bai and his apprentice A Qing embarked on a desperate journey of exploration. From Guizang Villa, which had been abandoned for 20 years, to the Immortal Altar in the underground ghost market of Chang'an, they discovered that behind the blood crystal case was the resurgence of the "life-borrowing method" - the powerful people used other people's life span as fuel to extend their lives. The mastermind behind the scenes, Anping King Li Xiao, was actually the master who trained Lu Bai as a "Tao seed" from childhood. He planned to gouge out his heart on the night of the blood moon to complete the Hundred-Man Sacrifice and open the forbidden heaven. During the pursuit, Lu Bai gradually unlocked his memory: he apostatized because he was unwilling to sacrifice innocent people (including his fiancée Lin Su'er), and Lin Su'er sacrificed her life to help him escape. In the end, Lu Bai refused to choose one of the two fates (sacrifice himself or let the Tianmen open), and used himself as the Eye of the Formation to forever suppress Zhongnan Mountain, in exchange for peace in the world and the opportunity for his lover to be reincarnated. The story combines the pursuit of amnesia, ancient secrets, machinations and self-salvation. In the process of exploring and breaking the mystery, it asks: When the memory returns, will you choose to be the monster of the past or the guardian of the present?
