Hao, the assistant, was a plump man in his thirties. He looked very friendly and nodded at Yu Xinyi when he heard her greeting: "Good evening, everyone is here now.",Yu Xindao: “I have a friend who participated in the investigation. He told me, but due to confidentiality rules, he couldn't say much. What he revealed was also vague, but it's better than nothing.”,Assistant Yu Xingjian was already at the door about to leave. He stared at the ground for a moment, then suddenly asked, “Assistant Hao, it’s getting cold, your jacket seems a bit thin, wouldn’t you be cold”。