The first night I moved into my new apartment, I received a note from the administrator: "No matter what noise you hear, never open the door to your neighbors."
Carefully following the rules, I made it through the first week safely.
On the seventh day, I accidentally found another note from the administrator: "I was away last week. If anyone pretends to be me and delivers a note, please flee immediately!"
At this time, there was a knock on the door: "Hello, I'll give you back the cookies you forgot at the door last week——"
