She is Aurora, swimming in the night sky, and find the aurora followed behind. Yet she does not realize that aurora is part of her actually. The story means: people supposedly perceive and cherish what they own, instead of blindly pursuing. Referring Anglerfish which owns a light, creating an item for Aurora to seek with the light. Aurora looks for the treasure light uneasily with tears. However, the tears become her scales, then turn into twinkling stars in the starry night.