When Chen Mo, a poor boy, had to win a prize of 500,000 yuan in a physics competition to save his uremic mother, he collided with school belle Lin Wanxing on the steps and exchanged bodies.
He became her - a ballet genius, admitted to Stanford, but burdened with the secret of his father's fatal medical accident three years ago.
She became him - a physics wizard, struggling on the edge of poverty and illness, holding the truth about his mother's kidney source that was taken away.
Seven days limit. He must use her body to complete a fatal dance and send her to Stanford; she must use his mind to win the cruel competition and save his mother.
However, under the cracks in the twin jade pendants, there is a more bloody rule: this is not a simple body exchange, but a sacrifice. When the scalpel cut open the skin and the enemy's daughter's kidneys began to beat inside his mother's body, they discovered that the one who survived would forever bear the sins and lives of two people.
This is a fatal transaction that begins with hatred, but ends in a symbiosis of flesh and blood. When love and sin circulate in the blood, who is the real avenger and who is the sacrificial lamb?