Life is like a story, whether long or short, it always has an ending that represents the end. However, that doesn't mean the story is complete. Like something we strive to achieve but cannot enjoy, and then regret it when we leave. That is also the reason why the ice flute exists, as an object that helps lingering souls live. It helps souls enter the bodies of living people to fulfill their final wishes. But there is only one life, can the living easily lend their body? If you want to know the answer, read the story.