Not over yet

You wake up to a loud scream. The first thing you hear is Kana saying "It's not over yet. I've still got one more magic trick."

Suddenly you feel strange, and then you black out. When you awake again you feel different. You look around and see slimy, pink walls. And then you hear a loud, booming voice say "You should've been nicer to me!" And then it hits you. You have switched bodies with Kana! You're now inside your own stomach!