Forbidden Moon (2.11)

What am I living for? This is a puzzling question. In the past, I lived to let others focus on me instead of my sister. Later, in order to fulfill her sister's wish, she lived for her sister. What now? Since there is no answer, I will leave this life to my friends. Let him use me as a test subject to try that spell. When you fail, don't save my life. This is the only requirement. If I can survive in another space, I promise you, sister, I will work hard to spend it with a smile.