[DISCONTINUED] Savetale: Journey Into A World Unknown (SLOW UPDATES)

(Slow Updates. I apologize)
Marie is a girl that travels from world to world to help people that need it. Her creator/sister another world for Marie to help. What happens if she goes to Undertale? Please read to find out. This is my very first book so please lower your expectations.
Though I hope that you still enjoy it despite it's cringeyness. Also my grammar is a bit wrong and I apologize for I am a Filipino and I can't help it. The story will loosely follow the game plot but don't worry since there is a new character, that means the plot will change. There's also a self-insert. . . .heheh. . . .if you don't like that then, don't read, 'kay? I only made this book for fun, really.
Before you read the story, I suggest you play the game first. Promise that you WON'T regret it. The Undertale game characters belong to Toby Fox and Marie is my OC. There are swear words here so if you don't like swearing, I suggest that you don't read this book. I am not gonna keep you now so ONTO THE STORY! UwU