What I Am Holding Is a Musical Instrument, Not an Artifact!

Amnesia is not scary. What is scary is that people around you do strange things with musical instruments. When I woke up, I was not in the hospital or my bed, but in a cave. With injuries on my body and no memory at all, a stranger said to me with a flute, "Where is your instrument?" Huh? I don't even remember what I had for breakfast. So I followed him down the mountain, and as he walked, he blew and summoned a bunch of birds to help him hunt and explore the way... Okay, maybe something's not right with the world. What happened next was even worse. (Note: I haven't remembered who I am yet, but things have become so big.)