[Guardian Rules + Turtle Soup + No Golden Finger Wit Flow + No CP + Non-System Text] Middle-aged woman Zhang Cuiping walked into an abandoned building to make a living, signed a strange contract that "not voluntarily leave her job", and joined the "Memory Post Office". The white envelope is filled with seemingly harmless daily greetings, but the gray envelope evokes nightmares of colleagues losing control and disappearing. When Bai Xin began to whisper "You are next" directly to him, Zhang Cuiping had to start from scratch, compete with memories and threats, and find the only way to survive in lies.