One sentence summary
This is a story of sadomasochism with no time travel, no rebirth, no system, no superpowers, and no traditional golden fingers. Liu Xiyan's only "plug-in" is a good relationship made by her mother during her lifetime - medicinal materials dealer Shen Qiniang. All counterattacks are based on the realist arc of "bearing humiliation → accurate calculation → feigning death and escaping → self-reliance and rebirth". Xiao Yan was not "defeated", but was crushed bit by bit by his own past obsessions, by the truth that Shen Zhaoning "never loved him", and by Liu Xiyan's indifference that "it was not worth hating".