*ya partner here offered me somethin'... somethin' i can't ignore."—BH!Sans.
.....
The snow blew, a hollow town left without MONSTERs to create the lively presence Snowdin once had. All of this started with genocide. It wasn't necessarily Chara's fault as the few who knew of her presence believed it to be. Common misunderstanding. A certain someone continued on their journey, like the timelines left behind them, erased. The purpose in mind never had a real answer; all of it was just past curiosity. Only one word can describe all of this.
Sadistic.
The chances of them—you, becoming bored of the constant genocide, were rare, given the timeline that we are in now. Even Chara deemed it wouldn't be possible, unless a change was made. They wanted that change. So badly that they chose Sans as a sort of host to keep their body relevant. No one else seemed fit for the job, even Undyne, whose personality would get in the way of things. What Sans brought to the table was, frankly, disappointing, to no one's surprise. Chara knew it'd turn out like that.
Chara had to get along with Sans, though, and despite the explanations they gave, he never changed attitude, even when Papyrus was brought into perspective. But, there was no time for explanations, not anymore. Now, with an hour left before the world ends, calculated by Sans, we start at the present time...
THE LAST CORRIDOR
Sans stood in the middle, with Chara leaning against his back, their arms crossed, and his in his pockets as always. Their contemplation about how they'll be able to initiate this change came out with nothing... no ideas came to mind. Oh well. Sans opens his eyes, gazing directly at you, not bothering to look at the weapon you carried with you, if you had one. Don't mistake this as the final stand, for as long as they RESET, they can try and try again.
*heya, you were busy, huh?
Deja vu...