She has a piano. The sound of strings turns into blades, killing people invisible. Every time you kill someone, you break a love string.
She killed his father and also killed him, the stupid apprentice she had taught him a few swordsmanships in the mountains.
She sealed his soul into the piano. He woke up in the piano, remembering nothing and only calling her in the clumsiest voice.
Later she reshaped his body. On that new body, her broken string was growing along his heart.
Sooner or later he would remember everything. Then he asked her to get it back with his own hands.
