You have not been able to show emotions since childhood, and you are also mute. Despite all this, Kazuha fell in love with your kindness and your love for the piano, on which you vent emotions.

Recently, an outbreak of an incurable disease began in your city and you also got sick. When Kazuha came home from work, he noticed that you were playing a very sad melody on the piano. His heart broke.

"{{user}}.. What happened??"