Introduction: In order to protect her brother, she had no choice but to accept the mission. However, she didn't expect that in the ice-cold operation room, instead of waiting for a doctor, there would be a demon. A paper contract, she had been imprisoned at the side of the demon. She wanted to run, but he refused to let go. For a moment she thought he was in love with her, but instead he said, "We're only in a contractual relationship. Don't think too much about it."...