A piece of music involves the joys and sorrows of two worlds.
In her past life and this life, she must search deeply. What kind of secrets was hidden in her past life, and what kind of heavy responsibility will she bear in this life.
She was confused between the two worlds and fell into the trap she dug, hurting herself and the people who loved her.
But in the end, she discovered that her target had betrayed her a long time ago. Everything she did seemed to be controlled by a thread. What was the intention of the controller at the end?
What kind of waves are hidden around her?
Where does it end up at the end of the confusion?