Su Wan was transformed into the "control group" in ancient Chinese novels about house fighting. The original character was obsessed with the male protagonist, jealous of his sister-in-law, and eventually ended up being abandoned by his family.
Faced with her eccentric parents, her hypocritical sister-in-law, and the "scumbag" male protagonist originally planned in the book, Su Wan chose the Buddhist style to show off - not fighting for favor or snatching marriage, but just wanting to live a stable life in the Gu Mansion.
But the more Buddhist she is, the more she is targeted by Gu Yan, the mysterious leader of the Gu family. This noble prince who was rumored to be "frail and afraid of the cold" was actually a vampire who relied on special blood to survive, and Su Wan's aura actually allowed him to restrain his bloodthirsty instinct.
House fight coming? Su Wan calmly resolved the situation and let those who plotted against her suffer the consequences; Gu Yan secretly supported her and protected her under his wings. When the Buddhist female protagonist meets the vampire male protagonist, the house chess game is completely disrupted by the two, and Su Wan becomes the only protagonist in the book from the "control group".