Who killed Grain Rain Xinlingjun?
In the play, the deceased experienced many cosmetic and body-shaping operations, and even had traces of fractures and augmentation operations, and was dismembered after death.
Xin Ling's ex-boyfriend is very suspicious. He was obviously violent and threatened one of his waitresses not to have too much contact with the police. Later proved to be a pervert, has been pestering Xin Ling.
Xin Ling was last seen in a restaurant in Deng Zhong.
But it wasn't Deng Zhong who killed Xinlingjun, because he had a sharp phobia and couldn't dismember his body.
Who killed Xin Ling in Grain Rain?
So it was her plastic surgeon Rei Lin who killed Xin Ling.
Xin Ling was killed by plastic surgeon Rei Lin because he was afraid that Xin Ling would sue him for plastic surgery failure.