The elder sister escaped from marriage, and the younger sister married in her place - she thought she was an abandoned piece on the chessboard, but he said, "The one I'm waiting for is you." It took him eight years to make a plan, and she used blood as a guide. The two people who were forced into a desperate situation by fate formed the deepest alliance on the tip of the knife. But when she finally gave birth to his child, he fell on the hospital bed and handed the entire country and the child she left into her hands.