Mutual redemption × self-destructive tendencies × addiction to wounds × pain relief × salt and rust
Seventeen-year-old Yan Yan (the heroine) has a secret - she is used to wiping her wounds with salt.
The chemistry teacher said that salt can kill bacteria, but it makes healing more painful.
But for Yan Yan, pain is the only way to prove that he is alive: the bruises caused by his father's alcoholism, the address of his mother's elopement, the dignity corroded by campus rumors... All the festering memories become numb at the moment when salt grains and blood blend.
Until she met Shen Yu (male protagonist).
"Have you heard? The crystal structure of salt is cubic, and the most regular shapes often hide the sharpest edges."
"You said salt makes the wound more painful? But my report shows that when the pain level reaches level 8, your smiling frequency increases by 37%."
"My dad said salt can prevent corrosion, but our family has long been rotten from the inside... Do you want to try pickling me with your recipe?"
Can those salt-pickled scars truly heal before they expire?