C97 Heavenly Sound(2)

When I thought about it carefully, I realized that the last time I came here, there were a lot of luggage on the ground floor. Now that none of them are here, could it be that they have already left the country?

While I was trying to figure out the problem, I walked up to the second floor. As soon as I came up, I saw a piano in the hall on the second floor. Beside the piano