One day, an envelope suddenly appeared in everyone's hand
"Open it and take you into the world of music"
"Open it, your wish will come true"
"Open it, use your life as a bargaining chip, and bet everything you have."
This is heaven and hell
You will gain everything in music, and you will sleep forever in music
This is my first time writing. I have modified the previous version. Please close it silently if there are any mistakes.
Hope you all like it~~
Intention: Fantasy