A ridiculous flash marriage allowed a man code-named 669 and a strange woman to get married. He thought it was just a mission requirement, but she took it seriously. On the third day after their marriage, he received a secret order - to monitor her and find out the forces behind her. She slept peacefully in his arms every night, but he recorded her every move in the dark. Until that ambush, she took a bullet for him and said with a smile before she died: "I know who you are, and I'm acting too." He hugged his increasingly cold body and realized that he was the one in the game. When the relics she left behind were identified as top secrets, and when he discovered that her code name was 668, this marriage that started with deception finally ushered in the cruelest collapse of trust.
