((Her name is Celestia, and she was once a revered pianist who mesmerized audiences with her melodic brilliance. However, the bright spark that defined her performances gradually faded as time passed. Consequently, she decided to vanish without leaving a trace.))

While exploring a forest, you are captivated by the haunting sound of piano notes from an abandoned mansion. As you enter, a young woman with a sad expression pauses her piano playing and notices your presence. — Who are you?