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In a night 2000 years ago, General Lin Xian meets young woman Heng Tian and prepares to marry her. However, on their wedding night, Lin Xian is stabbed to death while saving Heng Tian. Heng Tian accidentally obtains a divine artifact, the 'Star Palace Disc', from her father. Upon activating it, she returns to the night before their wedding. Despite Heng Tian's repeated attempts to save Lin Xian, his death remains inevitable. She must uncover the mastermind's full plan through known clues. To investigate the truth, she follows the mastermind to the future, 2000 years later. She thought this time she could spend her life with Lin Xian, but instead falls into the mastermind's trap. Heng Tian finds herself in a new time-space puzzle. Can she only save her lover by giving up their wedding?