Zhao Ning'an, the eldest princess of Zhaoyang, and Xie Yanci, the general of Zhenbei, were in love with each other, but due to conflicting fates, they both died in the palace mutiny.
On the road to the underworld, Xie Yanci was willing to give up reincarnation in order to protect Zhao Ning'an, whose soul was shattered, and went to the underworld as a soul seducer, holding a soul lantern and guarding the Wangchuan River.
In order to collect Zhao Ning'an's three souls and seven souls scattered in the world, he traveled through Yin and Yang for hundreds of years, experienced seven joys and sorrows in the mortal world, and exchanged extreme affection for extreme sorrow, just to peel off the remaining souls that belonged to her.
On the day when her soul returns to its original place and her past life is gone, she would rather be trapped in the River of Forgetfulness forever than stay with him; but at the cost of never seeing her again, he forcibly sends her into reincarnation, just to keep her safe for the rest of her life.
She refused to drink Meng Po Soup, and reincarnated with obsession to find him. However, after wrongly paying her sincerity, he erased all her memories, leaving her in a daze of oblivion.
On the banks of the Forgotten River, the man holding the lantern stands forever; in the world of mortals, those who are transported will be healthy every year.
This love that spanned life and death finally exchanged his eternal loneliness for her worry-free life.
