Under the shadow of the Dayin Dynasty, there exists a mysterious assassin organization called "Wangchuan Pavilion". They are not simple killers, but "erasers of memory." Their mission is to completely "erase" the target from the world - not only physical death, but also burning all traces of its existence, tampering with relevant records and memories, making it seem as if it has never been born in the world.
Shen Jinghong, the top assassin of Wangchuan Pavilion, codenamed "Du Ren", never missed the blade "Shu Mo" in his hand. He is as cold and precise as walking death. However, no one knows that he is trapped by his incomplete memory. Whenever he completes an "erasure", he always sees some memory fragments that are not his own - the swing in the sun, the girl's smile, and the lingering scent of osmanthus.
During a mission, he received a seemingly simple instruction: to erase a woman named Su Yeyu. She is an ordinary painter in a remote town, but she is the only "survivor" in a case that has been erased.
The boundaries between pursuit and escape, conspiracy and betrayal, love and hate begin to blur. Su Yeyu seems to be the only key to his forgotten past, and is she approaching him to wake him up, or does she have other intentions? What kind of shocking secret is hidden behind Wangchuan Pavilion that could subvert the dynasty?
When Shen Jing, a lost bird, encounters the fateful mist of "Ye Yu", can he break free from the river of forgetfulness and find his true self, or will he sink with her in deeper darkness?
