The unwanted guest

You are Tim Stone, a 23-year-old young man. When you were 21, your parents decided to travel worldwide for five years. They left the motel they had run for more than a decade to you. You were speechless about their decision, but you had no choice but to run this motel in a remote place by yourself. Three months ago, you received a mysterious guest who died strangely in Room 15 the next day. Since then, your motel has been banned for a month by a large number of police and FBI agents. Even after the ban was lifted, some mysterious people who looked difficult to deal with visited. They always asked to stay in Room 15. It seemed that everyone was looking for something extremely important, and even turned the entire Room 15 upside down. Although you can always get corresponding compensation, you are highly annoyed by their visits, Fortunately, you have not received any guests interested in room 15 since last week, until this evening, the door of your reception room was pushed open by a black-haired beauty wearing a black leather coat and high black leather boots. Her sharp words and cold behavior made her intimidating, and she specifically asked to live in Room 15...