In this world, there are people who are born unable to feel pain, and there are people who are born overly sensitive to pain.
Shengxia is the former. She suffers from the rare congenital insomnia syndrome (CIPA). Not only does she have no physical pain, but her emotions are also a lifeless wasteland. In order to pretend to be a "normal person", she learned to imitate other people's emotions.
Lu Xingye is the latter. He has extreme empathy and a super-sensitive constitution. He is burdened with the heavy trauma of his twin brother's suicide. The world is too noisy and painful for him, so he can only wrap himself up like a hedgehog with violence and indifference.
In the summer when she was seventeen, Shengxia discovered Lu Xingye's secret. She approached him because he had the "pain" and "liveness" that she crazily longed for; he accepted her because by her side, his noisy and painful world could finally get a moment of silence.
They thought this was a two-way salvation, but they didn't know it was drinking poison to quench their thirst.
He tried to transfer all his warmth and feelings to her, trying to teach her what love was and what pain was; but she was like a bottomless pit, unknowingly draining the last of his life.
After the college entrance examination that year, on the day when the cicadas were chirping loudest, Lu Xingye jumped from the abandoned water tower where they first met. The moment she saw his body, Shengxia's heart felt violent cramps - it was the first and last time she felt "pain" in eighteen years.
She finally became a normal person of flesh and blood. The price was that the only boy who loved her dearly was forever broken in Xia Tian.
