Prologue: The Attack

this is based on @Harrish6 Healing What Has Been Broken. The twist is that Error never fell into the void. Yes, I'm aware somebody already has done this but this is my own twist.

Cover: https://www.google.com/search?q=Error&tbm=isch&hl=en-US&chips=q:error,g_1:undertale:h3aDq5QdTHc%3D,g_1:sans:mqYOv2juYjM%3D&client=safari&prmd=ivn&hl=en-US&ved=2ahUKEwj0tPvdodnjAhXNhVMKHYpDCpUQ4lZ6BAgBEB4&biw=1024&bih=666#imgrc=M2LuaL8OpprFnM