**Introduction to the work**
Winter 1975, snowy night.
Su Wan was tied up in the woodshed by her husband's family, who forced her to be buried with her "martyr" ex-husband. She took out the forged marriage certificate: "The man, Lu Lin, is a border battalion commander and the evil star who killed his two fiancées."
The marriage certificate was fake, but Lu Lin was real. She had seen him - at her ex-husband's memorial service, he stood in the corner, his eyes like frozen glaciers.
Military vehicles rolled through the snow. He took the marriage certificate and glanced at it: "It's fake." But he took off his military coat and threw it on her shoulders, "Wear it. It's frozen to death. I can't explain it."
She thought it was a deal - he would protect her, and she would treat his back injury. When the storm passes, she disappears automatically.
But she didn't know that he knew her. From the day she peed on him when she was three years old, from the day her mother said, "Lin'er, you will protect Wanwan from now on." She didn't know that he had been waiting for her for seventeen years.
The fake marriage comes true, and the family and country are at hand. She treats illnesses, and he protects the country. The interest will be calculated from the first installment, and he said it will be charged for a lifetime.
And the wordless medical book in her hand hides the secret that her ex-husband is not dead, and also hides the truth that her mother paid for with her life.
