Someone died.

Aaron Zhao and his sister-in-law Amelia Li were eating and chatting when the door was knocked again.
Aaron Zhao and his sister-in-law Amelia Li looked at each other.
Zhao Xu walked towards the door, and when he opened it, he saw a man in standard clothes, wearing a shirt and trousers, standing outside the door.
"Who are you......?"
The man asked Zhao Xu, "Mr. Aaron Zhao, right? Someone asked me to give this to you."
Aaron Zhao looked down and saw a shiny gold coin with the word...