To be fair saving the world is too abstract you need something a little closer to home to risk it all, and love can truly make you do some crazy stuff. The music enhanced the tension, and the beauty of the situation. Poor Kagari she wants to help yet she can't understand the very beings she is supposed to protect. Since she isn't human be any means I originally thought she was born on the moon from the leaking power of the earth, essentially a Mooninite that yearned for human interaction., be a part of their world. I was off she's actually born on earth.