Zhao Ning, Princess Yong'an of the Dajing Dynasty, accidentally fell into the water on the eve of her wedding ceremony. When she woke up, she became a "Lamp Holder in the World" specially approved by the underworld. She holds a "soul-inducing lamp" in her left hand that can illuminate obsessions, and a "Memory Lock" that can seal regrets in her right hand. She must fulfill the unfulfilled wishes of the "obsessed souls" wandering the world at midnight on the fifteenth day of each month and help them dissipate in the afterlife.
At first, she thought it was a joke from God, and just wanted to get rid of her mission as soon as possible, but she got a glimpse of the various emotions of people through the soul crossings: the soul of a general who died fighting to protect his family and country but never saw his young son, the soul of a maid who died for a young lady but did not get a word of thanks, the soul of a scholar who broke up with her lover due to misunderstanding and died without saying "forgiveness"...
As the number of soul crossings increased, Zhao Ning discovered that his fall into the water was not an accident, but was closely related to the truth about his mother's "died of illness" ten years ago. What's even more bizarre is that every time after the soul is transferred, the soul-guiding lamp will reflect the fragmentary image of the mother, as if to guide her to uncover the dust-laden secrets. When the last soul lamp was lit, she finally saw clearly that the obsession that trapped her mother's soul was related to herself, and her mission to hold the lamp was a "two-way redemption" from the beginning.
