Have you ever heard of the legend? The Mystery Mr is a threat to monsters in the underground. Trapping their souls in Echo Flowers before they get a chance to die. Echo Flowers are lost souls repeating anything they hear for a feel of being a monster again. Waterfall is said to be the most beautiful place in the entire Underground, but maybe it's past on how it became so beautiful is not. has an Echo Flower ever not copied someone before? Find out as you see how this single Echo Flower changes how the underground is seen.

The monsters have grown tired of staying down in the underground for so long, they needed something to happen. But one day they could have never prepared themselves for what was happening. (An original undertale au by me called Blackfiretale) Corrupted by a poison or mist, it was very hard for monsters to survive only leave few to live and then soon die. Soon humans were there only hope for a cure, while humans in this au could destroy anything (like barriers) so everyone tried their best to kill the humans and the underground got more violent. While that was happening echo flowers were the most important thing to everyone, even flowey. Nobody kill me for using Gacha club!

Au sanses

Heyy! Hope you like! Check out my other books too. ♥️

You were an average kid, somewhat having a older mind than most of your classmates. you had always been into the undertale fandom, and even knew almost everything about the aus and soul colors. while what seemed like a normal day at school quickly turned around after a huge bang struck the class room next door. in this story y/n is nonbinary and 12-16 years old. But more interpreted as 14 I post a new chapter every 3 day and 5 days at the maximum. WARNING: this story will mention some forms of slight emotional harm. And Sexual abuse. Readers be safe. Please if you are in any danger, contact someone. You are not alone. With that aside enjoy the story . This story is finished as of September 1 2022, I encourage you to read my other story "Our Disturbing Love" And in the next month or couple weeks I plan on creating another bad sanses x reader.