Weird Story About Rules: but I'm in the Harem

[Short story + weak emotional line + novice novel] As soon as she opened her eyes, Su Wanzhao transformed into the transparent Su Cairen in the harem. Others' time travel was a palace fighting script, but what she got was the "Rules and Strange Tales Survival Manual": · Don't look in the mirror after a while, otherwise the person in the mirror will crawl out and replace you. · If the corners of the concubine's mouth become wider than three fingers wide when she smiles, she must lower her head immediately. · The palace maid in red cannot be ignored, and the palace maid in green cannot refuse. Just as she was taking notes tremblingly and trying to survive, strange things happened one after another: Black blood seeped out of Concubine Wan's rouge box, and Concubine De's body was covered with red streaks and she died of an explosion. What was even more frightening was that the young emperor who always appeared outside her palace late at night, and whose shadow could swallow the moonlight, leaned over and whispered in her ear: "Su Wanzhao, you can see 'them', right?" "Do me a favor..." But she didn't know that on the last page of her notebook, which was densely filled with rules, a line of blood words had already appeared: "Ultimate rule: Trust no one, including yourself who wrote this rule."