After many and many genocidal routes. You decide to do another one, like always. You start from the weakest enemy, to the strongest enemy. But you noticed something, odd? There isn't as much monsters around to kill as usual. You hear a voice, but it's... deep... and it's really monotonic.

??? : Turn around, kid.

You turn around in shock and anger to see Sans. But his hoodie is over him, and. Dust is all over him, but, why though?

Sans : I'm tired of the routes kid, it's time you reset. And start all over again, kid. We can do this the easy way, or the hard way. After all, you're just a dirty brother killer.