You're chilling in your house watching random stuff.

Until your Dorrbell ring, you go check and noticed a MailBox with a letter.

Upon open it, you see a CD with the name "Sonic Duchess C" written on it.

The Letter say the following:

"You've been selected to ply this new sonic fan game, we aren't responsable of any consequences of what might happen to you, if you dont want trouble, feel free to give the CD and the Letter to someone else. If you keep it however, enjoy your time~"

You decide to Try the game, but after placing the CD and the screen glow, your vision go blind, your soul leaving your body.

When you wake up, you arrived in a strange place, your soul has been trapped in the game.

Walk around and find a way to escape, or stay here and "play" with the Entity who resided in it~