Undertale: Mixed Timelines

After keeping her mouth shut for so long, Frisk finally gets the nerve to confront Chara and demand that she stops her murderous rampage. As shocked as she is, Chara reluctantly agrees. But there is a catch. Frisk has to be the one to kill sand, so they can beat the game first. Faced with the dilemma of either restarting now or waiting till the end all over again, Frisk makes the choice that changes everything.