The AU “Quantumtale” tells about former fallen child Frisk who, after ending the neutral run and regretted what they could’ve done, wanted to make things better for the monsters by resetting the timeline. However, upon wanting to reset their timeline, flowey had other plans and tricked Frisk into resetting using the power of the SOULS. The reset button glitched and shattered and the two were suddenly warped back in time, to the time of the Great War, and the six souls scattered across the monster territory. What’s more is that the SOULS now have the power to alter time after containing a fragment of the shattered reset button. It’s up to Frisk now with the help of some familiar faces to retrieve those six souls and go back to his rightful timeline in order to set things right once and for all!